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Слова на букву spas-tawa (2629)

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squamocellular
Relating to or having squamous epithelium.
squamocolumnar
Pertaining to the junction between a stratified squamous epithelial surface and one lined by columnar epithelium; e.g., the cardia of the stomach or anus.
squamofrontal
Relating to the squamous part of the frontal bone.
squamomastoid
Relating to the squamous and petrous portions of the temporal bone.
squamoparietal
Relating to the parietal bone and the squamous portion of the temporal bone.
squamopetrosal
SYN: petrosquamosal.
squamosa
The squamous parts of the frontal, occipital, or temporal bone, especially the latter. [L. squamosus, scaly, fr. squama, scale]
squamosal
Relating especially to the squamous part of the temporal bone.
squamosphenoid
Relating to the sphenoid bone and the squamous part of the temporal bone. SYN: sphenosquamosal.
squamotemporal
Relating to the squamous part of the temporal bone.
squamotympanic
SYN: tympanosquamosal.
squamous
Relating to or covered with scales. SYN: scaly. [L. squamosus]
Squamous cell carcinoma in situ
An early stage of skin cancer. Also known as Bowen's disease. This is a tumor that develops from the squamous cells which are flat, scalelike cells in the outer layer of the ...
Squamous cells
: Flat cells that look like fish scales. The word "squamous" came from the Latin squama meaning "the scale of a fish or serpent." We have a lot of squamous cells. They make up ...
squamozygomatic
Relating to the squamous part of the temporal bone and the zygomatic process of the temporal bone.
squill
The cut and dried fleshy inner scales of the bulb of the white variety of Urginea maritima (Mediterranean s.), or of U. indica (Indian s.) (family Liliaceae); the central portion ...
squint
1. SYN: strabismus. 2. To suffer from strabismus. - convergent s. SYN: esotropia. - divergent s. SYN: exotropia. - external s. SYN: exotropia. - internal s. SYN: ...
Sr
Symbol for strontium.
sr
Abbreviation for steradian.
SRF
Abbreviation for somatotropin-releasing factor.
SRF-A
Abbreviation for slow-reacting factor of anaphylaxis.
SRH
Abbreviation for somatotropin-releasing hormone.
SRIF
Abbreviation for somatotropin release-inhibiting factor.
sRNA
Abbreviation for soluble RNA. See entries under ribonucleic acid.
SRP
Abbreviation for signal recognition particle.
SRS
Abbreviation for slow-reacting substance.
SRS-A
Abbreviation for slow-reacting substance of anaphylaxis.
SRY
Sex region Y, a region on the Y chromosome that determines the sex of the individual. SRY is necessary and sufficient for male sex determination. It is the testis-determining ...
ss
Abbreviation for single-stranded, steady state.
SSPE
Subacute sclerosing panencephalitis, a chronic brain disease of children and adolescents that occurs months to often years after an attack of measles, causing convulsions, motor ...
SSPL
Abbreviation for saturation sound pressure level.
SSRI
Abbreviation for selective serotonin reuptake inhibitors, commonly prescribed drugs for treating depression. SSRIs affect the chemicals that nerves in the brain use to send ...
SSS
Abbreviation for soluble specific substance.
St John's wort
A flowering plant, Hypericum perforatum, also known as Perforate St John's wort, that has long been believed to have medicinal qualities. There is, in fact, some evidence that ...
St. Anthony's fire
The intensely painful burning sensation in the limbs and extremities caused by ergot, the consequence of a fungus (Claviceps purpurea) that contaminates rye and wheat. The fungus ...
St. Louis encephalitis
A disease caused by a virus (first observed in Illinois in 1932) transmitted from birds to the common Culex mosquito to people. St. Louis encephalitis occurs typically in the ...
stab
To pierce with a pointed instrument, as a knife or dagger. [Gael. stob]
stabilate
A sample of organisms preserved alive on a single occasion, i.e., by freezing.
stabile
Steady; fixed; denoting: 1) certain constituents of serum unaffected by ordinary degrees of heat; 2) an electrode held steadily on a part during the passage of an electric ...
stabilimeter
An instrument to measure the sway of the body when standing with feet together and usually with eyes closed. [L. stabilitas, firmness, + G. metron, measure]
stability
The condition of being stable or resistant to change. - denture s. the quality of a denture to be firm, steady, constant, and resistant to change of position when functional ...
stabilization
1. The accomplishment of a stable state. 2. SYN: denture stability.
stabilizer
1. That which renders something else more stable. 2. An agent that retards the effect of an accelerator, thus preserving a chemical equilibrium. 3. A part possessing the ...
stable
Steady; not varying; resistant to change. SEE ALSO: stabile.
stachybotryotoxicosis
A type of mycotoxicosis seen in horses and cattle following ingestion of hay and fodder overgrown by the fungus Stachybotrys atra; may also occur in humans exposed to hay either ...
stachydrine
The betaine of l-proline found in alfalfa, chrysanthemum, and citrus plants.
stachyose
A raffinosegalactopyranoside; a tetrasaccharide that yields d-glucose, d-fructose, and 2 mol of d-galactose upon hydrolysis; present in certain tubers and other plant tissues.
stactometer
SYN: stalagmometer. [G. staktos, dropping, fr. stazo, to let fall by drops, + metron, measure]
Stader
Otto, U.S. veterinary surgeon, *1894. See S. splint.
Staderini
Rutilio, 19th century Italian neuroanatomist. See S. nucleus.
stadiometer
An instrument for measuring standing or sitting height. [L. stadium, fr. G. stadion, a fixed length, + G. metron, measure]
stadium
Obsolete term for a stage in the course of a disease, especially of an acute pyretic disease. [L. fr. G. stadion, a fixed standard length]
staff
1. A specific group of workers. 2. SYN: director (1). [A.S. staef] - attending s. physicians and surgeons who are members of a hospital s. and regularly attend their patients ...
Staff of Aesculapius
A rod or stick with the snake curled around it is the staff (the rod) of Aesculapius (also called Asklepios), the ancient god of medicine. His Greek name was Asklepios and his ...
Stafne
Edward C., U.S. oral pathologist, 1894–1981. See S. bone cyst.
Stage
: The extent of a cancer, especially whether the disease has spread from the original site to other parts of the body. See also staging. * * * 1. A period in the course of a ...
Stage of dilatation
The part of labor when the cervix dilates fully (to 10 centimeters). Also called the first stage of labor.
stagger
To walk unsteadily; to reel.
staggers
A form of decompression sickness in which vertigo, mental confusion, and muscular weakness are the chief symptoms.
Staging
: Doing exams and tests to learn the extent of a cancer, especially whether it has spread from its original site to other parts of the body. * * * 1. The determination or ...
stagnation
Retardation or cessation of flow of blood in the vessels, as in passive congestion; marked slowing or accumulation in any part of a normally circulating fluid. [L. stagnum, a ...
Stahl
George E., German physician and chemist, 1660–1734. He promulgated the phlogiston theory. See phlogiston. Friedrich K., German physician, 1811–1873. See S. ear.
Stähli
Jean, Swiss ophthalmologist, *1890. See Hudson-S. line.
stain
1. To discolor. 2. To color; to dye. 3. A discoloration. 4. A dye used in histologic and bacteriologic technique. 5. A procedure in which a dye or combination of dyes and ...
Stain, Gram
The Danish bacteriologist J.M.C. Gram (1853- 1938) devised a method of staining bacteria using a dye called crystal (gentian) violet. Gram's method helps distinguish between ...
staining
1. The act of applying a stain. SEE ALSO: stain. 2. In dentistry, modification of the color of the tooth or denture base. - progressive s. a procedure in which s. is continued ...
stains-all
A dye that stains phosphoproteins blue, proteins red, nucleic acid s purple, and mucoproteins and mucopolysaccharides various colors on acrylamide gels; also used on tissue ...
staircase
A series of reactions that follow one another in progressively increasing or decreasing intensity, so that a chart shows a continuous rise or fall. See treppe.
stalagmometer
An instrument for determining exactly the number of drops in a given quantity of liquid; used as a measure of the surface tension of a fluid (the lower the tension, the smaller ...
stalk
A narrowed connection with a structure or organ. - allantoic s. the narrow connection between the intraembryonic portion of the allantois and the extraembryonic allantoic ...
stammer
1. To hesitate in speech, halt, repeat, and mispronounce, by reason of embarrassment, agitation, unfamiliarity with the subject, or as yet unidentified physiologic causes. ...
stammering
1. A speech disorder characterized by hesitation and repetition of words, or by mispronunciation or transposition of certain consonants, especially l, r, and s. 2. Sounds other ...
Stamnosoma
A genus of flukes of the family Heterophyidae, identical with Centrocestus. Two species, S. armatum and S. formosanum, have been described as sometimes infecting humans. [G. ...
standard
1. Something that serves as a basis for comparison; a technical specification or written report by experts. 2. See s. substance. [M.E., fr. O.Fr. estandard, rallying place, fr. ...
standardization
1. The making of a solution of definite strength so that it may be used for comparison and in tests. 2. Making any drug or other preparation conform to the type or standard. 3. A ...
standstill
Cessation of activity. - atrial s. cessation of atrial contractions, marked by absence of atrial waves in the electrocardiogram. SYN: auricular s.. - auricular s. SYN: atrial ...
Stanley
Edward, English surgeon, 1793–1862. See S. cervical ligaments, under ligament.
stannic
Relating to tin, especially when in combination in its higher valency. [L. stannum, tin]
stannic chloride
SnCl4; a fuming liquid ( fuming spirit of Libavius), specific gravity 2.23, boiling point 115°C, that forms several hydrates; the pentahydrate ( butter of tin) is used for ...
stannic oxide
SnO2; used in industry; it is a cause of pneumoconiosis. SYN: tin oxide.
Stannius
Herman F., German biologist, 1808–1883. See S. ligature.
stannous
Relating to tin, especially when in combination in its lower valency. [L. stannum, tin]
stannous fluoride
A preparation containing not less than 71.2% of stannous tin and not less than 22.3% nor more than 25.5% of fluoride; used as a prophylactic against caries in dentistry.
stannum
SYN: tin. [L.]
stanolone
An androgen with the same actions and uses as testosterone; used for its anabolic and tumor-suppressing effects, specifically, in carcinoma of the breast. SYN: ...
stanozolol
Stanozol, 17α-methyl-5α-androstan-17β-ol carrying a pyrazole ring (=CH–NH–N=) attached to C-2 and C-3 (see steroids for androstane structure). A semisynthetic, orally ...
stapedectomy
Operation to remove the stapes in whole or part with replacement of the stapes by a metal or plastic prosthesis; used for otosclerosis with stapes fixation to overcome a ...
stapedial
Relating to the stapes.
stapediotenotomy
Division of the tendon of the stapedius muscle. [ stapedius + G. tenon, tendon, + tome, incision]
stapediovestibular
Relating to the stapes and the vestibule of the ear.
stapedius
SYN: s. (muscle). [Mod. L.]
stapedotomy
A surgical technique for the improvement of hearing in otosclerosis : a hole is made in the footplate of the stapes bone through which is placed the piston-shaped end of a ...
stapes
The smallest of the three auditory ossicles; its base, or footpiece, fits into the vestibular (oval) window, while its head is articulated with the lenticular process of the ...
Staph
Very commonly used shortened form of Staphylococcus, a very common and important group of bacteria. See Staphylococcus.
staphyl-
See staphylo-.
staphylectomy
SYN: uvulectomy. [ staphyl- + G. ektome, excision]
staphyledema
Edema of the uvula. [ staphyl- + G. oidema, swelling (edema)]
staphyline
SYN: botryoid.
staphylion
The midpoint of the posterior edge of the hard palate; a craniometric point. SEE ALSO: posterior nasal spine of horizontal plate of palatine bone. [G. dim. of staphyle, a bunch ...
staphylo-, staphyl-
Resemblance to a grape or a bunch of grapes, hence relating usually to staphylococci or, in obsolescent image, to the uvula palatina. SEE ALSO: uvulo-. [G. staphyle, a bunch of ...
staphylococcal
Relating to or caused by any organism of the genus Staphylococcus.
Staphylococcal infection
Infection with one of the Staphylococcal bacteria. Staph infection can cause pus-filled abscesses on the skin or internal organs, and can migrate through the blood to infect the ...
Staphylococcal scalded skin syndrome
An infection of the skin with group II Staphylococcus aurea bacteria. The bacteria release toxins, causing inflamed, scaling skin that looks as though it has been burned. It is ...
staphylococcemia
The presence of staphylococci in the circulating blood. [staphylo- + G. haima, blood]
staphylococci
Plural of staphylococcus.
staphylococcic
Relating to or caused by any species of Staphylococcus.
staphylococcolysin
SYN: staphylolysin.
staphylococcolysis
Lysis or destruction of staphylococci. [staphylo- + G. lysis, dissolution]
staphylococcosis
Infection by species of the bacterium Staphylococcus.
Staphylococcus
A group of bacteria that cause a multitude of diseases. Under a microscope, Staphylococcus bacteria are round and bunched together. They can cause illness directly by infection, ...
Staphylococcus, antibiotic-resistant
A form of the Staphylococcus bacteria that is unaffected by commonly used antibiotics. Antibiotic-resistant Staphylococcus is a growing problem, particularly in hospitals where ...
staphylodialysis
SYN: uvuloptosis. [staphylo- + G. dialysis, a separation]
staphylohemia
Obsolete term for staphylococcemia.
staphylohemolysin
A mixture of hemolysins (alpha, beta, gamma, and delta), included in staphylococcal exotoxin; the α hemolysin has a marked effect on vascular muscle.
staphylokinase
A microbial metalloenzyme from Staphylococcus aureus, with action similar to that of urokinase and streptokinase, that can convert plasminogen to plasmin but requires Ca2+; ...
staphylolysin
1. A hemolysin elaborated by a staphylococcus. 2. An antibody causing lysis of staphylococci. SYN: staphylococcolysin.
staphyloma
A bulging of the cornea or sclera containing uveal tissue. [staphylo- + G. -oma, tumor] - anterior s. a bulging near the anterior pole of the eyeball. SYN: corneal s.. - anular ...
staphylomatous
Relating to or marked by staphyloma.
staphylopharyngorrhaphy
Surgical repair of defects in the uvula or soft palate and the pharynx. SYN: palatopharyngorrhaphy. [staphylo- + pharynx + G. rhaphe, suture]
staphyloplasty
SYN: palatoplasty. [staphylo- + G. plasso, to form]
staphyloptosis
SYN: uvuloptosis. [staphylo- + G. ptosis, a falling]
staphylorrhaphy
SYN: palatorrhaphy. [staphylo- + G. rhaphe, suture]
staphylotoxin
The toxin elaborated by any species of Staphylococcus. SEE ALSO: staphylohemolysin. [staphylo- + G. toxikon, poison]
stapling
Use of a s. device that unites two tissues, such as the two ends of bowel, by applying a row or circle of staples. - gastric s. partitioning of the stomach by rows of staples; ...
star
Any s.-shaped structure. SEE ALSO: aster, astrosphere, stella, stellula. [A.S. steorra] - daughter s. one of the figures forming the diaster. SYN: polar s.. - lens stars 1. ...
starch
A high molecular weight polysaccharide built up of d-glucose residues in α-1,4 linkage, differing from cellulose in the presence of α- rather than β-glucoside linkages, that ...
starch-eating
SYN: amylophagia.
stare
1. To look intently or fixedly. 2. An intent gaze. [A.S. starian]
Stargardt
Karl, German ophthalmologist, 1875–1927. See S. disease.
Stargardt disease
An hereditary eye disease that is one of the most frequent causes of macular degeneration in childhood. (The macula is the part of the retina that is responsible for central ...
Starling
Ernest H., English physiologist, 1866–1927. See S. curve, S. hypothesis, S. law, S. reflex, Frank-S. curve.
Starr
Albert, U.S. physician, *1926. See S.- Edwards valve.
Starry
See Warthin-S. silver stain.
starter
SYN: primer (1).
Startle reflex
A reflex seen in normal infants in response to a loud noise. The infant with make a sudden body movement, bringing the legs and arms toward the chest.
starvation
Lengthy and continuous deprivation of food.
starve
1. To suffer from lack of food. 2. To deprive of food so as to cause suffering or death. 3. Formerly, to die of cold. [A.S. steorfan, to die]
Stas
Jean-Servais, Belgian chemist, 1813–1891. See S.-Otto method.
stasimorphia
Dysmorphogenesis due to arrested development. [G. stasis, a standing still, + morphe, shape]
Stasis
Stasis refers to a stoppage or slowdown in the flow of blood (or other body fluid such as lymph). A stasis ulcer is an ulcer (a crater) that develops in an area in which the ...
Stasis dermatitis
A skin irritation on the lower legs generally related to circulatory problems. Stasis refers to a stoppage or slowdown in the flow of blood (or other body fluid such as lymph). ...
Stasis ulcer
A stasis ulcer is an ulcer (a crater) that develops in an area in which the circulation is sluggish and the venous return (the return of venous blood toward the heart) is poor. A ...
STAT
A common medical abbreviation which is used to imply urgent or rush. It is derived from a Latin word "statim" which means immediately.
stat-
Prefix applied to electrical units in the CGS-electrostatic system to distinguish them from units in the CGS-electromagnetic system (prefix ab-) and those in the metric system or ...
stat.
Abbreviation for L. statim, at once, immediately.
statampere
The electrostatic unit of current; the flow of 1 electrostatic unit of charge (1 statcoulomb) per second; equal to 3.335641 × 10−10 ampere. [G. statos, standing (stationary), ...
statcoulomb
The electrostatic unit of charge, such that two objects, each carrying such a charge and separated (center to center) by 1 cm in a vacuum, will repel each other with a force of 1 ...
state
A condition, situation, or status. [L. status, condition, s.] - absent s. SYN: dreamy s.. - activated s. SYN: excited s.. - anxiety tension s. a milder form of an anxiety ...
State, hypercoagulable
A hypercoagulable state is the medical term for a condition in which there is an abnormally increased tendency toward blood clotting (coagulation). There are numerous ...
statfarad
An electrostatic unit of capacitance, equal to 1.112650 × 10−12 farad.
stathenry
An electrostatic unit of inductance, equal to 8.987552 × 1011 henry.
stathmokinesis
Condition of arrested mitosis after treatment with an agent, such as colchicine, which effectively alters the mitotic spindle to prevent typical rearrangement of the ...
statim
At once; immediately. [L.]
Statins
A class of drugs that lower cholesterol. There are currently at least 6 statin drugs on the market in the U.S., including: Lovastatin (brand name: Mevacor), Simvastatin (brand ...
station
The degree of descent of the presenting part of the fetus through the maternal pelvis, as measured in relation to the ischial spines of the maternal pelvis.
statistical significance
Statistical methods allow an estimate to be made of the probability of the observed degree of association between variables, and from this the s. can be expressed, commonly in ...
statistics
1. A collection of numerical values, items of information, or other facts which are numerically grouped into definite classes and subject to analysis, particularly analysis of ...
statoacoustic
Relating to equilibrium and hearing. SYN: vestibulocochlear (2). [G. statos, standing, + akoustikos, acoustic]
statoconia
SYN: otoliths. [L. fr. G. statos, standing, konis, dust]
statokinetic
Pertaining to statokinetics.
statokinetics
The adjustment made by the body in motion to maintain stable equilibrium. [G. statos, standing, + kinesis, movement]
statoliths
SYN: otoliths. [G. statos, standing, + lithos, stone]
statometer
SYN: exophthalmometer. [G. statos, standing, + metron, measure]
statosphere
SYN: centrosphere.
stature
The height of a person. [L. statura, fr. statuo, pp. statutus, to cause to stand]
status
A state or condition. [L. a way of standing] - s. anginosus prolonged angina pectoris refractory to treatment. - s. arthriticus obsolete term for gouty diathesis or ...
Status epilepticus
An epileptic seizure that lasts more than 30 minutes; a constant or near-constant state of having seizures. Status epilepticus is a health crisis, and requires immediate ...
Statutory rape
A legal term describing sexual intercourse between an adult and a minor. The adult can be found guilty of statutory rape in courts of law even if the minor was a willing partner. ...
statvolt
An electrostatic unit of potential or electromotive force, equal to 299.7925 V. [G. statos, standing (stationary), + volt]
Staub
Hans, Swiss internist, 1890–1967. See S.- Traugott effect, S.- Traugott phenomenon.
staurion
A craniometric point at the intersection of the median and transverse palatine sutures. [G. dim. of stauros, cross]
STD
Abbreviation for sexually transmitted disease.
STDs in men
See sexually transmitted diseases in men.
STDs in women
See Sexually transmitted diseases in women.
steal
Diversion of blood via alternate routes or reversed flow, from one vascular bed to another, often causing symptoms in the organ from which blood flow has been diverted. [M.E. ...
steapsin
SYN: triacylglycerol lipase.
stear-
See stearo-.
stearal
Octadecanal(dehyde); the aldehyde of stearic acid. SYN: stearaldehyde.
stearaldehyde
SYN: stearal.
stearate
A salt of stearic acid.
stearic acid
n-Octadecanoic acid; one of the most abundant fatty acid s found in animal lipids; used in pharmaceutical preparations, ointments, soaps, and suppositories.
stearin
Tristearoylglycerol; the “triglyceride” of stearic acid present in solid animal fats and in some vegetable fats; source of stearic acid; commercial s. also contains some ...
Stearns
A. Warren, U.S. physician, 1885–1959.
stearo-, stear-
Combining form denoting fat. SEE ALSO: steato-. [G. stear, tallow]
stearrhea
SYN: steatorrhea.
stearyl alcohol
An ingredient of hydrophilic ointment and hydrophilic petrolatum; also used in the preparation of creams.
stearyl-CoA, stearyl-coenzyme A
The coenzyme A thioester of stearic acid; precursor to oleic acid and, in the brain, the C22 and C24 fatty acid s present in sphingomyelins; in the brain, use of stearyl-CoA ...
steatite
Talc in the form of a mass.
steatitis
Inflammation of adipose tissue. [G. stear (steat-), tallow, + -itis, inflammation]
steato-
Combining form denoting fat. See stearo-. [G. stear (steat-), tallow]
steatocystoma
A cyst with sebaceous gland cells in its wall. - s. multiplex widespread, multiple, thin-walled cysts of the skin that are lined by squamous epithelium, including lobules of ...
steatogenesis
Biosynthesis of lipids. The term is used specifically to designate lipid accumulation in the testes of nonmammalian vertebrates on completion of spermatogenesis in the breeding ...
steatolysis
The hydrolysis or emulsion of fat in the process of digestion. [ steato- + G. lysis, dissolution]
steatolytic
Relating to steatolysis.
steatonecrosis
SYN: fat necrosis. [ steato- + G. nekrosis, death]
steatopyga, steatopygia
Excessive accumulation of fat on the buttocks. [ steato- + G. pyge, buttocks]
steatopygous
Having excessively fat buttocks.
steatorrhea
Passage of fat in large amounts in the feces, due to failure to digest and absorb it; occurs in pancreatic disease and the malabsorption syndromes. SYN: fat indigestion. SYN: ...
steatosis
1. SYN: adiposis. 2. SYN: fatty degeneration. [ steato- + G. -osis, condition] - s. cardiaca excessive fat on the pericardium and invading the cardiac muscle. - s. cordis ...
steatozoon
Common name for Demodex folliculorum. [ steato- + G. zoon, animal]
Steele
John C., Canadian neurologist, fl. 1951–1968. See S.-Richardson- Olszewski disease, S.-Richardson- Olszewski syndrome.
Steele-Richardson-Olszewksi syndrome
Eponym for progressive supranuclear palsy, a neurologic disorder of unknown origin that gradually destroys cells in many areas of the brain, leading to serious and permanent ...
Steell
Graham, British physician, 1851–1942. See Graham S. murmur.
Steenbock
Harry, U.S. physiologist and chemist, 1886–1967. See S. unit.
stege
The internal pillar of Corti organ. [G. stegos, roof, a house]
stegnosis
1. A stoppage of any of the secretions or excretions. 2. A constriction or stenosis. [G. stoppage]
stegnotic
1. Astringent or constipating. 2. An astringent or constipating agent.
Stein
Stanislav A.F. von, Russian otologist, *1855. See S. test. Irving F., U.S. gynecologist, *1887. See S.- Leventhal syndrome.
Stein-Leventhal syndrome
A hormonal problem that causes women to have various symptoms, including irregular or no menstruation, acne, obesity, and excess hair growth. Women with PCO do not ovulate ...
Steinberg
I. See S. thumb sign.
Steinbrinck
W., 20th century Germany physician. See Chédiak-S.- Higashi anomaly, Chédiak-S.- Higashi syndrome.
Steinert
Hans, German physician, *1875. See S. disease.
Steinmann
Fritz, Swiss surgeon, 1872–1932. See S. pin.
steinstrasse
A complication of extracorporeal shock wave lithotripsy for urinary tract calculi in which stone fragments block the ureter to form a “stone street.” [Ger. Stein, stone, + ...
STEL
Abbreviation for short-term exposure limit.
stella
A star or star-shaped figure. [Mod. L.] - s. lentis hyaloidea the posterior pole of the lens. See radii lentis, under radius. - s. lentis iridica the anterior pole of the lens. ...
stellate
Star-shaped. [L. stella, a star]
stellectomy
Stellate ganglionectomy.
stellula
A small star or star-shaped figure. [L. dim. of stella, star] - stellulae vasculosae SYN: stellulae winslowii. - stellulae verheyenii SYN: venulae stellatae, under venula. - ...
Stellwag
Carl von C., Austrian ophthalmologist, 1823–1904. See S. sign.
stem
A supporting structure similar to the stalk of a plant. - brain s. brainstem. - infundibular s. the neural component of the pituitary stalk that contains nerve tracts passing ...
Stem cell
One of the human body's master cells, with the ability to grow into any one of the body's more than 200 cell types. All stem cells are unspecialized (undifferentiated) cells that ...
Stem cell harvest
The taking of stem cells for use in cancer or other treatment. Usually these cells are taken from the patient’s own bone marrow. The procedure usually involves use of a general ...
Stem cell harvest, peripheral blood
A technique for obtaining stem cells from the patient's blood for use in bone marrow transplantation. They are lured out of the bone marrow by a special regimen of drugs. The ...
Stem cell transplantation
The use of stem cells as a treatment for cancer or other diseases: {{}}The stem cells are removed (or obtained) from a donor. Before a transplant is done for cancer, the patient ...
sten.
A statistical term which uses the standard deviation to convert data into standardized scores which define 10 steps along a normal distribution, with five steps on either side of ...
Stender
Wilhelm P., 19th century Leipzig manufacturer of scientific apparatus. See S. dish.
Stenger test
See under test.
stenion
The termination in either temporal fossa of the shortest transverse diameter of the skull; a craniometric point. [G. stenos, narrow, + dim. -ion]
Steno
See Stensen.
steno-
Narrowness, constriction; opposite of eury-. [G. stenos, narrow]
stenobregmatic
Denoting a skull narrow anteriorly, at the part where the bregma is. [ steno- + G. bregma]
stenocardia
SYN: angina pectoris. [ steno- + G. kardia, heart]
stenocephalia
SYN: stenocephaly.
stenocephalous, stenocephalic
Pertaining to, or characterized by, stenocephaly.
stenocephaly
Marked narrowness of the head. SYN: stenocephalia. [ steno- + G. kephale, head]
stenochoria
Abnormal contraction of any canal or orifice, especially of the lacrimal ducts. [G. s., narrowness, fr. steno- + chora, place, room]
stenocompressor
An instrument for compressing the ducts of the parotid glands ( Stensen duct) in order to keep back the saliva during dental operations.
stenocrotaphy, stenocrotaphia
Narrowness of the skull in the temporal region; the condition of a stenobregmate skull. [ steno- + G. krotaphos, temple]
Stenon
See Stensen. [Stenonius, Latin form of Stensen]
stenopeic, stenopaic
Provided with a narrow opening or slit, as in s. spectacles. [ steno- + G. ope, opening]
stenosal
SYN: stenotic.
stenosed
Narrowed; contracted; strictured.
Stenosis
A narrowing, as in aortic stenosis (narrowing of the aortic valve in the heart), pulmonary stenosis (narrowing of the pulmonary valve in the heart), pyloric stenosis ...
Stenosis, aortic
Narrowing (stenosis) of the heart valve between the left ventricle of the heart and the aorta. This narrowing impedes the delivery of blood through the aorta to the body and makes ...
Stenosis, pulmonary
The pulmonary valve is too tight so that the flow of blood from the right ventricle of the heart into the pulmonary artery is impeded. This means the right ventricle must pump ...
Stenosis, subaortic
Narrowing of the left ventricle of the heart just below the aortic valve through which blood must pass on its way up into the aorta. The narrowing cuts the flow of blood. ...
stenostenosis
Stricture of the parotid duct (Steno or Stensen duct).
stenostomia
Narrowness of the oral cavity. [ steno- + G. stoma, mouth]
stenothermal
Thermostable through a narrow temperature range; able to withstand only slight changes in temperature. [ steno- + G. therme, heat]
stenothorax
A narrow contracted chest. [ steno- + thorax]
stenotic
Narrowed; affected with stenosis. SYN: stenosal.
Stenotrophomonas
A genus of Gram-negative bacilli that typically reside in soil and water and are not a part of normal human flora. - S. maltophilia an opportunistic ocular bacterial pathogen ...
stenoxenous
Denoting a parasite with a narrow host range; e.g., Eimeria (among the Coccidia), hookworm, biting and sucking lice. [ steno- + G. xenos, a stranger, foreigner]
Stensen
Niels (Nicholaus), Danish anatomist, 1638–1686. See S. duct, S. foramen, S. plexus, S. veins, under vein.
Stent
A tube designed to be inserted into a vessel or passageway to keep it open. Stents are inserted into narrowed coronary arteries to help keep them open after balloon ...
step
1. In dentistry, a dove-tailed or similarly shaped projection of a cavity prepared in a tooth into a surface perpendicular to the main part of the cavity for the purpose of ...
stephanial
Pertaining to the stephanion.
stephanion
A craniometric point where the coronal suture intersects the inferior temporal line. [G. dim. of stephanos, crown]
Stephanofilaria
A genus of Filaroid nematodes in the family Stephanofilariidae, subcutaneous parasites of large mammals, especially cattle. - S. stilesi a skin-infecting species of filaria ...
Stephanurus dentatus
The kidney worm or lard worm of swine, a strongyle nematode parasite species that also occurs, though rarely, in the liver of cattle. Adult worms in swine live in the perirenal ...
steppage
SYN: s. gait. [Fr.]
steradian
The unit of solid angle; the solid angle that encloses an area on the surface of a sphere equivalent to the square of the radius of the sphere. [G. stereos, solid, + radion, ...
sterane
The hypothetical parent molecule for any steroid hormone; a saturated hydrocarbon compound that contains no oxygen. The name was originally conceived to achieve forms of ...
sterco-
Feces. SEE ALSO: copro-, scato-. [L. stercus, excrement]

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