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Слова на букву spas-tawa (2629)

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spasmophilic
Relating to spasmophilia.
spasmus
SYN: spasm. [L. fr. G. spasmos, spasm] - s. coordinatus compulsive movements, such as imitative or mimic tics, festinatio. - s. glottidis SYN: laryngismus stridulus. - s. ...
spastic
1. SYN: hypertonic (1). 2. Relating to spasm or to spasticity. [L. spasticus, fr. G. spastikos, drawing in]
Spastic colitis
A common gastrointestinal disorder involving an abnormal condition of gut contractions (motility) characterized by abdominal pain, bloating, mucous in stools, and irregular bowel ...
Spastic paraplegia, autosomal dominant
A degenerative disorder of nerves with progressive spasticity of the legs. Abbreviated as AD-HSP. Spasticity is a state of increased muscle tone. Paraplegia refers to the legs ...
Spastic pseudoparalysis
Better known as Creutzfeldt-Jakob disease (CJD). A dementing disease of the brain. CJD is believed to be due to a highly unconventional transmissible agent named a prion. It is ...
Spasticity
A state of increased tone of a muscle (and an increase in the deep tendon reflexes). For example, with spasticity of the legs (spastic paraplegia) there is an increase in tone of ...
spatia
Plural of spatium. [L.]
spatial
Relating to space or a space.
spatium
SYN: space. [L.] - spatia anguli iridocornealis [TA] SYN: spaces of iridocorneal angle, under space. - s. endolympha′ticum [TA] SYN: endolymphatic space. - s. episclerale [TA] ...
spatula
A flat blade, like a knife blade but without a sharp edge, used in pharmacy for spreading plasters and ointments and as an aid to mixing ingredients with a mortar and pestle. ...
spatulate
1. Shaped like a spatula. 2. To manipulate or mix with a spatula. 3. To incise the cut end of a tubular structure longitudinally and splay it open, to allow creation of an ...
spatulated
SYN: spatulate.
spatulation
Manipulation of material with a spatula.
Spatz
Hugo, German neurologist and psychiatrist, 1888–1969. See Hallervorden-S. disease, Hallervorden-S. syndrome.
spay
To remove the ovaries of an animal. [Gael. spoth, castrate, or G. spadon, eunuch]
SPCA
Abbreviation for serum prothrombin conversion accelerator.
SPD calcinosis
Striopallidodentate (SPD) calcinosis, a condition first described in 1930 by T. Fahr and therefore called Fahr syndrome, is a genetic (inherited) neurological disorder ...
spearmint
The leaves and flowering tops of Mentha viridis (green garden or lamb mint) or M. cardiaca (family Labiatae); a carminative and flavoring agent. - s. oil the volatile oil, ...
specialist
One who has developed professional expertise in a particular specialty or subject area.
specialization
1. Professional attention limited to a particular specialty or subject area for study, research, and/or treatment. 2. SYN: differentiation (1).
specialize
To engage in specialization (1).
specialty
The particular subject area or branch of medical science to which one devotes professional attention. [L. specialitas fr. specialis, special]
speciation
The evolutionary process by which diverse species of animals or plants are formed from a common ancestral stock.
species
1. A biologic division between the genus and a variety or the individual; a group of organisms that generally bear a close resemblance to one another in the more essential ...
species-specific
Characteristic of a given species; serum that is produced by the injection of immunogens into an animal, and that acts only upon the cells, protein, etc., of a member of the same ...
specific
1. Relating to a species. SEE ALSO: s. epithet. 2. Relating to an individual infectious disease, one caused by a special microorganism. 3. A remedy having a definite ...
Specific developmental disorder
A disorder that selectively affects one area of development, sparing essentially all other areas of development. For example, dysgraphia is one type of specific developmental ...
Specific-pathogen free
A term applied to animals reared for use in laboratory experiments when the animals are known to be free of germs that can cause disease (pathogenic microorganisms).
specificity
1. The condition or state of being specific, of having a fixed relation to a single cause or to a definite result; manifested in the relation of a disease to its pathogenic ...
specillum
A probe or small sound. [L. a probe, fr. specio, to look at]
specimen
A small part, or sample, of any substance or material obtained for testing. [L. fr. specio, to look at] - cytologic s. a s. obtainable by a variety of methods from many areas of ...
Speckled iris
Due to little white (or lightly colored) spots that are slightly elevated on the surface of the iris. These spots, arranged in a ring concentric with the pupil, occur in normal ...
SPECT
An acronym that stands for Single Photon Emission Computed Tomography, a nuclear medicine procedure in which a gamma camera rotates around the patient and takes pictures from ...
SPECT scan
Single Photon Emission Computed Tomography, a nuclear medicine procedure in which a gamma camera rotates around the patient and takes pictures from many angles, which a computer ...
spectacles
Lenses set in a frame that holds them in front of the eyes, used to correct errors of refraction or to protect the eyes. The parts of the s. are the lenses; the bridge between ...
spectinomycin hydrochloride
An antibiotic antibacterial agent.
spectra
Plural of spectrum. [L.]
spectral
Relating to a spectrum.
Spectral karyotype(SKY)
A visualization of all of the chromosomes in the genome all together with each chromosome labeled with a different color. The SKY technique is useful for identifying chromosome ...
spectrin
A filamentous contractile protein that together with actin and other cytoskeleton proteins forms a network that gives the red blood cell membrane its shape and flexibility; a ...
spectro-
A spectrum. [L. spectrum, an image]
spectrochemistry
The study of chemical substances and their identification by means of spectroscopy, i.e., by light emitted or absorbed.
spectrocolorimeter
A colorimeter using a source of light from a selected portion of the spectrum, i.e., of a selected wavelength.
spectrofluorometer
An instrument for measuring the intensity and quality of fluorescence.
spectrogram
A graphic representation of a spectrum. [ spectro- + G. gramma, something written]
spectrograph
An instrument used in spectography. - mass s. an instrument that subjects charged and accelerated ions (atomic or molecular) to a magnetic field that imparts a curved path that ...
spectrography
The procedure of photographing or tracing a spectrum. [ spectro- + G. grapho, to write]
spectrometer
An instrument for determining the wavelength or energy of light or other electromagnetic emission. [ spectro- + G. metron, measure]
spectrometry
The procedure of observing and measuring the wavelengths of light or other electromagnetic emissions. - clinical s. SYN: biospectrometry.
Spectrophobia
An abnormal and persistent fear of ghosts. Sufferers of spectrophobia experience undue anxiety even though they realize their fear is irrational. They may fear going into woods, ...
spectrophotofluorimetry
Measurement of the intensity and quality of fluorescence by means of a spectrophotometer.
spectrophotometer
An instrument for measuring the intensity of light of a definite wavelength transmitted by a substance or a solution, giving a quantitative measure of the amount of material in ...
spectrophotometry
Analysis by means of a spectrophotometer. - atomic absorption s. determination of concentration by the ability of atoms to absorb radiant energy of specific wavelengths. - flame ...
spectropolarimeter
An instrument for measuring the rotation of the plane of polarized light of specific wavelength upon passage through a solution or translucent solid. [ spectro- + polarimeter] ...
spectroscope
An instrument for resolving light from any luminous body into its spectrum, and for the analysis of the spectrum so formed. It consists of a prism that refracts the light or a ...
spectroscopic
Relating to or performed by means of a spectroscope.
spectroscopy
Observation and study of spectra of absorbed or emitted light by means of a spectroscope. - clinical s. SYN: biospectroscopy. - infrared s. the study of the specific ...
spectrum
1. The range of colors presented when white light is resolved into its constituent colors by being passed through a prism or through a diffraction grating : red, orange, ...
Speculum
An instrument used to widen an opening to look within a passage or a cavity. For example, a speculum may be used to widen the opening of the vagina so that the cervix is more ...
Speculum, ear
An instrument inserted into the auditory canal of the ear to increase the circumference of the tunnel-shaped canal walls. (The auditory canal begins at the circular opening of ...
Speculum, nasal
An instrument used to widen the opening of a nostril so the inside can be more easily seen. " Speculum" is the Latin word for mirror.
Speculum, vaginal
An instrument used to widen the opening of the vagina so that the cervix is more easily visible. " Speculum" is the Latin word for mirror.
Spee
Ferdinand Graf von, German embryologist, 1855–1937. See curve of S..
speech
Talk; the use of the voice in conveying ideas. [A.S. spaec] - alaryngeal s. a form of s. achieved after laryngectomy by using either an external vibratory source or the ...
Speech disorders
Disorders of the ability to produce normal speech. Speech disorders may affect articulation (phonetic or phonological disorders); fluency (stuttering or cluttering); and/or ...
Speech therapist
An older term for a speech- language pathologist.
Speech therapy
The treatment of speech and communication disorders. The approach used depends on the disorder. It may include physical exercises to strengthen the muscles used in speech ...
Speech-language pathologist
: A specialist who evaluates and treats people with communication and swallowing problems. Also called a speech therapist. Speech pathologists have an MA or doctorate in their ...
SPEECH1
Gene that when mutated is responsible for motor dyspraxia.
Speed
: Common street name for a stimulant drug, especially for an amphetamine. Amphetamines have been used to treat hyperactivity in children, the symptoms of narcolepsy, and as an ...
spelencephaly
SYN: porencephaly. [spelaion, cave, + enkephalos, brain]
Spens
Thomas, Scottish physician, 1769–1842. See S. syndrome.
Sperm
A sperm is the male "gamete" or sex cell. It combines with the female "gamete," called an ovum, to form a zygote. The formation process is called ...
sperm-aster
Cytocentrum with astral rays in the cytoplasm of an inseminated ovum; it is brought in by the penetrating spermatozoon and evolves into the mitotic spindle of the first ...
sperma-, spermato-, spermo-
Semen, spermatozoa. [G. sperma, seed]
spermaceti
A peculiar fatty, waxy substance, chiefly cetin (cetyl palmitate), obtained from the head of the sperm whale, Physeter macrocephalus; used to impart firmness to ointment bases. ...
spermagglutination
Agglutination of spermatozoa.
spermatic
Relating to the sperm or semen.
Spermatic cord
A group of structures which go through the inguinal canal to the testis. The structures include the vas deferens, arteries, veins, lymphatic vessels, and nerves.
spermatid
A cell in a late stage of the development of the spermatozoon; it is a haploid cell derived from the secondary spermatocyte and evolves by spermiogenesis into a spermatozoon. ...
spermatin
Name proposed for an albuminoid in the seminal fluid.
spermato-
See sperma-.
spermatoblast
SYN: spermatogonium. [ spermato- + G. blastos, germ]
spermatocele
Cyst of the epididymis containing spermatozoa. SYN: spermatocyst. [ spermato- + G. kele, tumor]
spermatocidal
Destructive to spermatozoa. SYN: spermicidal.
Spermatocide
Any agent that is destructive to spermatozoa (that is, kills sperm). Nonoxynol-9 is the most commonly encountered spermatocide in the United States. (The nonoxynols, technically ...
spermatocyst
SYN: spermatocele.
spermatocytal
Relating to spermatocytes.
spermatocyte
Parent cell of a spermatid, derived by mitotic division from a spermatogonium. [ spermato- + G. kytos, cell] - primary s. the s. derived by a growth phase from a ...
spermatocytogenesis
SYN: spermatogenesis.
Spermatogenesis
The process of sperm formation. The term was created from the prefix " spermato-" (Greek sperma, the seed or germ) + "genesis" (the coming into being of something) = the coming ...
spermatogenetic
SYN: spermatogenic.
spermatogenic
Relating to spermatogenesis; sperm-producing. SYN: spermatogenetic, spermatogenous, spermatopoietic (1).
spermatogenous
SYN: spermatogenic.
spermatogeny
SYN: spermatogenesis.
spermatogone
SYN: spermatogonium.
spermatogonium
The primitive sperm cell derived by mitotic division from the germ cell; increasing several times in size, it becomes a primary spermatocyte. SEE ALSO: spermatid. SYN: ...
spermatoid
1. Resembling a sperm, a sperm tail, or semen. 2. A male or flagellated form of the malarial microparasite. [spermato + G. eidos, form]
spermatology
The branch of histology, physiology, and embryology concerned with sperm and/or seminal secretion. [ spermato- + G. logos, study]
spermatolysin
A specific lysin (antibody) formed in response to the repeated injection of spermatozoa.
spermatolysis
Destruction, with dissolution, of the spermatozoa. SYN: spermolysis. [ spermato- + G. lysis, dissolution]
spermatolytic
Relating to spermatolysis.
spermatophobia
Morbid fear of spermatorrhea or loss of semen. [ spermato- + G. phobos, fear]
spermatophore
A capsule containing spermatozoa; found in a number of invertebrates. [ spermato- + G. phoros, bearing]
spermatopoietic
1. SYN: spermatogenic. 2. Secreting semen. [ spermato- + G. poieo, to make]
spermatorrhea
An involuntary discharge of semen, without orgasm. [ spermato- + G. rhoia, a flow]
spermatoxin
A cytotoxic antibody specific for spermatozoa. SYN: spermotoxin.
spermatozoa
Plural of spermatozoon.
spermatozoal, spermatozoan
Relating to spermatozoa.
spermatozoon
The male gamete or sex cell that contains the genetic information to be transmitted by the male, exhibits autokinesia, and is able to effect zygosis with an ovum. The human s. ...
spermaturia
SYN: semenuria.
spermia
Plural of spermium.
spermicidal
SYN: spermatocidal.
spermicide
SYN: spermatocide.
Spermicide, vaginal
A vaginal spermicide is a substance that will kill sperm in the vagina. Vaginal spermicides are available in foam, cream, jelly, film, suppository, or tablet forms. All ...
spermidine
A polyamine found with spermine in a wide variety of organisms and tissues; found in human sperm; important in cell and tissue growth.
spermiduct
1. SYN: ductus deferens. 2. SYN: ejaculatory duct.
spermine
A polyamine found in some bacteria; associated with nucleic acid s in some viruses; found in human sperm; important in cell and tissue growth. SYN: gerontine, musculamine, ...
spermiogenesis
That segment of spermatogenesis during which immature spermatids become spermatozoa. [sperm- + G. genesis, origin]
spermism
The belief by preformationists that the male sex cell (sperm) contains a miniature preformed body called the homunculus.
spermist
A preformationist who believed in the concept of spermism. Cf.:ovist.
spermium
H.W.G. Waldeyer term for the mature male germ cell or spermatozoon.
spermo-
See sperma-.
spermolith
A concretion in the ductus deferens. [ spermo- + G. lithos, stone]
spermolysis
SYN: spermatolysis.
Spermophilus
A genus of ground squirrel. S. beecheyi, S. grammurus, S. pygmaeus, S. townsendi, and several other species act as an important reservoir of Yersinia pestis.
spermotoxin
SYN: spermatoxin.
SPF
Abbreviation for sun protection factor.
SPF (sun protection factor)
A number on a scale for rating sunscreens. SPF stands for Sun Protection Factor. SPF numbers on a package can range from as low as 2 to as high as 60. These numbers refer to the ...
sph.
Abbreviation for spherical, or spherical lens.
sphacelate
To become gangrenous or necrotic. [G. sphakelos, gangrene]
sphacelation
1. The process of becoming gangrenous or necrotic. 2. Gangrene or necrosis. [G. sphakelos, gangrene]
sphacelism
The condition manifested by a sphacelus.
sphacelous
Sloughing, gangrenous, or necrotic.
sphacelus
A mass of sloughing, gangrenous, or necrotic matter. [G. sphakelos, gangrene]
Sphaeroltilus
A genus of bacteria closely related to Leptothrix found in fresh water; S. natans grows a thick biofilm mat in sulfite-containing water, especially as drained from paper mills.
sphenethmoid
SYN: sphenoethmoid.
sphenion
The tip of the sphenoidal angle of the parietal bone; a craniometric point. [Mod. L. fr. G. sphen, wedge, + dim. -ion]
spheno-
Wedge, wedge-shaped; the sphenoid bone. [G. sphen, wedge]
sphenobasilar
Relating to the sphenoid bone and the basilar process of the occipital bone. SYN: sphenoccipital, sphenooccipital.
sphenoccipital
SYN: sphenobasilar.
sphenocephaly
Condition characterized by a deformation of the skull giving it a wedge-shaped appearance. [ spheno- + G. kephale, head]
sphenoethmoid
Relating to the sphenoid and ethmoid bones. SYN: sphenethmoid.
sphenoethmoidectomy
An operation to remove diseased tissue from the sphenoid and ethmoid sinuses.
sphenofrontal
Relating to the sphenoid and frontal bones.
Sphenoid
A bone at the base of the skull that is of a most irregular shape. The sphenoid bone consists of a central portion, (the body of the sphenoid) and six processes: two greater ...
sphenoidal
1. Relating to the sphenoid bone. 2. Wedge-shaped. SYN: sphenoid (1) [TA].
sphenoidale
The point of greatest convexity between the anterior contour of the sella turcica and the jugum s..
sphenoiditis
1. Inflammation of the sphenoid sinus. 2. Necrosis of the sphenoid bone. [sphenoid + G. -itis, inflammation]
sphenoidostomy
An operative opening made in the anterior wall of the sphenoid sinus. [sphenoid + G. stoma, mouth]
sphenoidotomy
Any operation on the sphenoid bone or sinus. [sphenoid + G. tome, a cutting]
sphenomalar
SYN: sphenozygomatic.
sphenomaxillary
Relating to the sphenoid bone and the maxilla.
sphenooccipital
SYN: sphenobasilar.
sphenopalatine
Relating to the sphenoid and the palatine bones.
Sphenopalatine neuralgia
A distinctive syndrome of headaches, better known today as cluster headache. There are two main clinical patterns of cluster headache — the episodic and the chronic: ...
sphenoparietal
Relating to the sphenoid and the parietal bones.
sphenopetrosal
Relating to the sphenoid bone and the petrous portion of the temporal bone.
sphenorbital
Denoting the portions of the sphenoid bone contributing to the orbits.
sphenosalpingostaphylinus
See tensor veli palati (muscle). [L.]
sphenosquamosal
SYN: squamosphenoid.
sphenotemporal
Relating to the sphenoid and the temporal bones.
sphenotic
Relating to the sphenoid bone and the bony case of the ear. [ spheno- + G. ous, ear]
sphenoturbinal
Denoting the concha sphenoidalis.
sphenovomerine
Relating to the sphenoid bone and the vomer.
sphenozygomatic
Relating to the sphenoid and the zygomatic bones. SYN: sphenomalar.
sphere
A ball or globular body. [G. sphaira] - attraction s. SYN: astrosphere. - Morgagni spheres SYN: Morgagni globules, under globule.
spherical
Pertaining to, or shaped like, a sphere.
sphero-
Spherical, a sphere. [G. sphaira, globe]
spherocylinder
SYN: spherocylindrical lens.
spherocyte
A small, spherical red blood cell. [ sphero- + G. kytos, cell]
spherocytosis
Presence of sphere-shaped red blood cells in the blood. SYN: microspherocytosis. [ spherocyte + G. -osis, condition] - hereditary s. [MIM*182900] a congenital defect of spectrin ...
Spherocytosis, hereditary (HS)
A genetic disorder of the red blood cell membrane clinically characterized by anemia, jaundice (yellowing) and splenomegaly (enlargement of the spleen). In HS the red cells are ...
spheroid, spheroidal
Shaped like a sphere. [L. spheroideus]
spherometer
An instrument to determine the curvature of a sphere or a spherical lens. See Geneva lens measure. [ sphero- + G. metron, measure]
spherophakia
A congenital bilateral aberration in which the lenses are small, spherical, and subject to subluxation; may occur as an independent anomaly or may be associated with the ...
spheroplast
A bacterial cell from which the rigid cell wall has been incompletely removed. The bacterium loses its characteristic shape and becomes round. [ sphero- + G. plastos, formed]
spheroprism
A spherical lens decentered to produce a prismatic effect, or a combined spherical lens and prism.
spherospermia
Spheroid spermatozoa lacking an elongated tail, in contrast to the threadlike, tailed sperm of humans and other mammals (nematospermia). [ sphero- + G. sperma, seed]
spherule
1. A small spherical structure. 2. A sporangiallike structure filled with endospores at maturity, produced within tissue and in vitro by Coccidioides immitis. [LL. sphaerula, ...
sphincter
A muscle that encircles a duct, tube, or orifice in such a way that its contraction constricts the lumen or orifice. SYN: musculus s. [TA], s. muscle [TA]. [G. sphinkter, a band ...
sphincteral
Relating to a sphincter. SYN: sphincterial, sphincteric.
sphincteralgia
Pain in the sphincter ani muscles. [sphincter + G. algos, pain]
sphincterectomy
1. Excision of a portion of the pupillary border of the iris. 2. Dissecting away any sphincter muscle. [sphincter + G. ektome, excision]
sphincterial, sphincteric
SYN: sphincteral.
sphincterismus
Spasmodic contraction of the sphincter ani muscles.
sphincteritis
Inflammation of any sphincter.
sphincteroid
Denoting similarity to a musculus sphincter. [sphincter + G. eidos, resemblance]
sphincterolysis
An operation for freeing the iris from the cornea in anterior synechia involving only the pupillary border. [sphincter, + G. lysis, loosening]
sphincteroplasty
Operation on any sphincteric muscle. [sphincter + G. plastos, formed]
sphincteroscope
A speculum to facilitate inspection of the internal sphincter ani muscle. [sphincter + G. skopeo, to view]
sphincteroscopy
Visual examination of a sphincter.
sphincterotome
An instrument for incising a sphincter.
sphincterotomy
Incision or division of a sphincter muscle. [sphincter + G. tome, incision] - external s. transurethral incision of external urethral sphincter. - transduodenal s. division of ...
sphinganine
Dihydrosphingosine; a constituent of the sphingolipids.
sphingol
SYN: sphingosine.
sphingolipid
Any lipid containing a long-chain base like that of sphingosine ( e.g., ceramides, cerebrosides, gangliosides, sphingomyelins); a constituent of nerve tissue.
sphingolipidosis
Collective designation for a variety of diseases characterized by abnormal sphingolipid metabolism, e.g., gangliosidosis, Gaucher disease, Niemann-Pick disease. SYN: ...
sphingolipodystrophy
SYN: sphingolipidosis.
Sphingomyelin lipoidosis
Also called Niemann-Pick disease, this is a disorder of the metabolism of a lipid (fat) called sphingomyelin that usually causes the progressive development of enlargement of the ...
sphingomyelin phosphodiesterase
An enzyme catalyzing hydrolysis of sphingomyelin to N-acylsphingosine (a ceramide) and phosphocholine; a deficiency of this enzyme is associated with type I Niemann-Pick ...
sphingomyelinase
SYN: sphingomyelin phosphodiesterase.
Sphingomyelinase deficiency
Also called Niemann-Pick disease, this is a disorder of the metabolism of a lipid (fat) called sphingomyelin that usually causes the progressive development of enlargement of the ...
sphingomyelins
A group of phospholipids, found in brain, spinal cord, kidney, and egg yolk, containing 1-phosphocholine (choline O-phosphate) combined with a ceramide (a long-chain fatty acid ...
sphingosine
The principal long-chain base found in sphingolipids. SYN: (4E)-sphingenine, sphingol.
sphygm-
See sphygmo-.
sphygmic
Relating to the pulse.
sphygmo-, sphygm-
Pulse. [G. sphygmos]
sphygmo-oscillometer
An instrument resembling an aneroid sphygmomanometer used in the measurement of the systolic and diastolic blood pressure. [sphygmo- + L. oscillo, to swing, + G. metron, ...
sphygmocardiograph
A polygraph recording both the heartbeat and the radial pulse. SYN: sphygmocardioscope. [sphygmo- + G. kardia, heart, + grapho, to write]
sphygmocardioscope
SYN: sphygmocardiograph. [sphygmo- + G. skopeo, to view]
sphygmochronograph
A modified sphygmograph that represents graphically the time relations between the beat of the heart and the pulse; one recording the character of the pulse as well as its ...
sphygmogram
The graphic curve made by a sphygmograph. SYN: pulse curve. [sphygmo- + G. gramma, something written]
sphygmograph
An instrument consisting of a lever, the short end of which rests on the radial artery at the wrist, its long end being provided with a stylet which records on a moving ribbon ...
sphygmographic
Relating to or made by a sphygmograph; denoting the s. tracing, or sphygmogram.
sphygmography
Use of the sphygmograph in recording the character of the pulse.
sphygmoid
Pulselike; resembling the pulse. [sphygmo- + G. eidos, resemblance]
Sphygmomanometer
An instrument for measuring blood pressure, particularly in arteries. The two types of sphygmomanometers are a mercury column and a gauge with a dial face. The sphygmomanometer ...
sphygmomanometry
Determination of the blood pressure by means of a sphygmomanometer.
sphygmometer
SYN: sphygmomanometer.
sphygmometroscope
An instrument for auscultating the pulse, used especially in the auscultatory method of reading the blood pressure, particularly the diastolic pressure. [sphygmo- + G. metron, ...
sphygmopalpation
Feeling the pulse. [sphygmo- + L. palpatio, palpation]
sphygmophone
An instrument by which a sound is produced with each beat of the pulse. [sphygmo- + G. phone, sound]
sphygmoscope
An instrument by which the pulse beats are made visible by causing fluid to rise in a glass tube, by means of a mirror projecting a beam of light, or simply by a moving lever as ...
sphygmoscopy
Examination of the pulse. [sphygmo- + G. skopeo, to view]
sphygmosystole
Obsolete term for that segment of the pulse wave corresponding to the cardiac systole. [sphygmo- + G. systole, a contracting]
sphygmotonograph
An instrument for recording graphically both the pulse and the blood pressure. [sphygmo- + G. tonos, tension, + grapho, to write]
sphygmotonometer
An instrument, like the sphygmotonograph, for determining the degree of blood pressure. [sphygmo- + G. tonos, tension, + metron, measure]
sphygmoviscosimetry
Measurement of the pressure and the viscosity of the blood.
spica
See bandage. [L. a point, an ear of grain]
spicula
Plural of spiculum. [L.]
spicular
Relating to or having spicules.
spicule
1. A small needle-shaped body. 2. Accessory reproductive structure in male nematodes; useful in identification of species. [L. spiculum, dim. of spica, or spicum, a point]
spiculum
A spicule or small spike. [L.]
spider
1. An arthropod of the order Araneida ( subclass Arachnida) characterized by four pairs of legs; a cephalothorax; a globose, smooth abdomen; and a complex of web-spinning ...
Spider bites
Bites from most spiders are irritating, but not poisonous. Localized reddening and swelling are not unusual, and should pass within a few days. A few spiders are poisonous, ...
Spider veins
A group of widened veins that can bee seen through the surface of the skin. Their wheel-and- spoke shape resembles a spider. Also known as spider telangiectasia.
spider-burst
Radiating dull red capillary lines on the skin of the leg, usually without any visible or palpable varicose veins, but nevertheless due to deep-seated venous dilation. ...
Spiegelberg
Otto, German gynecologist, 1830–1881. See S. criteria, under criterion.
Spieghel
Adrian van der. See Spigelius.
Spiegler
Eduard, Austrian dermatologist, 1860–1908. See cutaneous pseudolymphoma, S.- Fendt sarcoid.
Spielmeyer
Walter, Munich neurologist, 1879–1935. See S. acute swelling, S.- Stock disease, S.- Vogt disease.
spigelian
Relating to or described by Spigelius.
Spigelius
Adrian (van der Spieghel), Flemish anatomist in Padua, 1578–1625. See spigelian hernia, S. line, S. lobe.
spike
1. A brief electrical event of 3–25 ms that gives the appearance in the electroencephalogram of a rising and falling vertical line. 2. In electrophoresis, a sharply angled ...
spill
An overflow; a scattering of fluid or finely divided matter. - cellular s. a dissemination of cells through the lymph or blood, thereby resulting in metastases or implantation of ...
Spiller
William G., U. S. neurologist, 1863–1940. See Frazier-S. operation.
spillway
A groove or channel through which food may pass from the occlusal surfaces of teeth during the masticatory process. SYN: sluiceway.
spilus
SYN: nevus s.. [Mod. L. fr. G. spilos, a spot]
spin-
See spino-.
spina
SYN: spine (1). [L. a thorn, the backbone, spine] - s. angularis SYN: spine of sphenoid bone. - s. bifida embryologic failure of fusion of one or more vertebral arches; subtypes ...
Spina bifida
A birth defect (a congenital malformation) in which there is a bony defect in the vertebral column so that part of the spinal cord, which is normally protected within the ...
Spina bifida cystica
A bony defect in the vertebral column that causes a cleft in that column. The meningeal membranes that cover the spinal cord and part of the spinal cord protrude through this ...
Spina bifida occulta
A bony defect in the vertebral column that causes a cleft in that column. The cleft remains covered by skin. Treatment is usually not required.
spinal
1. Relating to any spine or spinous process. 2. Relating to the vertebral column. SYN: rachial, rachidial, rachidian, spinalis. [L. spinalis]
Spinal cord
The major column of nerve tissue that is connected to the brain, lies within the vertebral canal, and from which the spinal nerves emerge. The spinal cord and the brain constitute ...
Spinal nerve
One of the nerves that originates in the spinal cord. There are 31 pairs of spinal nerves. They consist of the 8 cervical nerves, 12 thoracic nerves, 5 lumbar nerves, 5 sacral ...
Spinal stenosis
Narrowing of the spinal canal. Spinal stenosis is most commonly caused by degeneration of the discs between the bony building blocks of the spine (vertebrae). The result is ...
Spinal tap
Also known as a lumbar puncture or "LP", a spinal tap is a procedure whereby spinal fluid is removed from the spinal canal for the purpose of diagnostic testing. It is ...
spinalis
SYN: spinal. [L.]
spinate
Spined; having spines.
spindle
In anatomy and pathology, any fusiform cell or structure. [A.S.] - aortic s. a fusiform dilation of the aorta immediately beyond the isthmus. SYN: His s.. - central s. a ...
Spine
1) The column of bone known as the vertebral column, which surrounds and protects the spinal cord. The spine can be categorized according to level of the body: i.e., cervical ...

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