Inflammation of the connective tissue and other structures about the urinary bladder. [para- + G. kystis, bladder, + -itis, inflammation]
The tissues adjacent to the urinary bladder. [para- + G. kystis, bladder]
1. Relating to cells other than those normal to the part where they are found. 2. Between or among, but independent of, cells. [para- + G. kytos, cell]
Inflammation of the tissues adjacent to a gland. [para- + G. aden, gland, + -itis, inflammation]
1. Relating to the paradidymis. 2. Alongside the testis.
A small body sometimes attached to the front of the lower part of the spermatic cord above the head of the epididymis; the remnants of tubules of the mesonephros. Its ...
A perverted appetite for fluids, ingested without relation to bodily need. [para- + G. dipsa, thirst]
That which is apparently, though not actually, inconsistent with or opposed to the known facts in any case. [G. paradoxos, incredible, beyond belief, fr. doxa, belief]
- Weber p. ...
Passage of a clot (thrombus) from a vein to an artery. When clots in veins break off (embolize) , they travel first to the right side of the heart and, normally, then to the lungs ...
1. One of the methane series of acyclic hydrocarbons. 2. SYN: hard p.. [L. parum, little, + affinis, neighboring, akin, so called because of its slight tendency to chemical ...
A treatment for the symptoms of joint and muscle conditions, such as arthritis, that consists of melted mineral wax derived from petroleum applied to a body area. Paraffin dips ...
A tumefaction, usually a granuloma, caused by the prosthetic or therapeutic injection of paraffin into the tissues; sometimes used with reference to similar lesions resulting ...
1. Having one or more paraflagella. 2. SYN: paramastigote.
A minute accessory flagellum sometimes present in addition to the ordinary flagellum of certain protozoans.
A polymer of formaldehyde, used as a disinfectant. SYN: trioxymethylene.
Substitution of another letter sound for the g sound. SEE ALSO: gammacism. [para- + G. gamma, the letter g]
A neoplasm usually derived from the chromoreceptor tissue of a paraganglion, such as the carotid body, or the medulla of the adrenal gland; the latter is usually termed a ...
A small, roundish body containing chromaffin cells; a number of such bodies may be found retroperitoneally near the aorta and in organs such as the kidney, liver, heart, and ...
SYN: dysgeusia. [para- + G. geusis, taste]
1. A developmental defect resulting in an individual with an accessory lower jaw. 2. A parasitic fetus attached to the jaw of the autosite. [para- + G. gnathos, jaw]
An unexpected reaction. [para- + G. gnomen, gnome, judgment]
Infection with a worm of the genus Paragonimus, especially P. westermani. SYN: pulmonary distomiasis.
A genus of lung flukes, parasitic in humans and a wide variety of mammals, that feed upon crustacea carrying the metacercariae. [para- + G. gonimos, with generative power]
- P. ...
1. Loss of the power of writing from dictation, although the words are heard and comprehended. 2. Writing one word when another is intended. [para- + G. grapho, to write]
A substance, product of ordinary metabolism, not produced for a specific purpose, that acts like a hormone in modifying the activity of some distant organ; e.g., the action of ...
A small mass of pituitary tissue, or tissue resembling in structure the anterior lobe of the hypophysis, occasionally found in the dura mater lining of the sella turcica.
Occurring at the time of and in association with an acute infection or an episode of infection. For example, transverse myelitis (a disorder of the spinal cord) can occur ...
Substitution of another letter sound for that of k. SEE ALSO: kappacism. [para- + G. kappa, the letter k]
Retention of nuclei in the cells of the stratum corneum of the epidermis, observed in many scaling dermatoses such as psoriasis and subacute or chronic dermatitis.
- p. ...
Any speech defect; especially one in which one letter is habitually substituted for another. [para- + G. lalia, talking]
- p. literalis SYN: stammering.
Mispronunciation of the letter l, or the substitution of some other letter for it. SEE ALSO: lambdacism. [para- + G. lambda, letter l]
(CH3CHO)3; a cyclic polymer of acetaldehyde; a potent hypnotic sedative, and anticonvulsant suitable for oral, rectal, intravenous, and intramuscular administration; its ...
Presence of certain trophic or nerve changes suggesting an attenuated form of leprosy in regions where the disease has long prevailed.
1. A rarely used term for a temporary attack of mental inertia and hopelessness. 2. A sudden alteration in mood or emotional tension. [G. para- + lepsis, seizure]
Misapprehension of written or printed words, other meaningless words being substituted for them in reading. [para- + G. lexis, speech]
Painful paresthesia; any disorder or abnormality of the sense of pain. [para- + G. algesis, the sense of pain]
Abnormal or unusual pain. [para- + G. algos, pain]
Morbid fear of neglect of duty. [G. paraleipo, to omit, pass over, + phobos, fear]
1. The apparent displacement of an object that follows a change in the position from which it is viewed. 2. See phi phenomenon. [G. alternately, fr. par-allasso, to make ...
1. The state of being structurally parallel. 2. In psychology, the mind-body doctrine that for every conscious process there is a corresponding or parallel organic process, ...
An apparatus used for paralleling the attachments and abutments for fixed or removable partial dentures.
Denoting an allergic state in which the body becomes predisposed to nonspecific stimuli following original sensitization with a specific allergen.
paralogia, paralogism, paralogy
False reasoning, involving self-deception. [G. p., a fallacy, fr. para, beside, + logos, reason]
- thematic p. false reasoning in relation chiefly to one theme or subject, upon ...
: Loss of voluntary movement (motor function). Paralysis that affects only one muscle or limb is partial paralysis, also known as palsy; paralysis of all muscles is total ...
Paralysis, facial nerve
Loss of voluntary movement of the muscles on one side of the face due to abnormal function of the facial nerve (the 7th cranial nerve) which supplies those muscles. Facial nerve ...
Paralysis, infantile (polio)
Infantile paralysis is an old synonym for poliomyelitis, an acute and sometimes devastating viral disease. Man is the only natural host for poliovirus. The virus enters the ...
Paralysis, laryngeal nerve
Paralysis of the recurrent laryngeal nerve, a branch of the vagus nerve (a long and important nerve that originates in the brainstem and runs down to the colon). After the ...
A frightening form of paralysis that occurs when a person suddenly finds himself or herself unable to move for a few minutes, most often upon falling asleep or waking up. Sleep ...
Formally called gastroparesis, this is a medical condition in which the muscle of the stomach is paralyzed by a disease of either the stomach muscle itself or the nerves ...
Paralysis, vocal cord
Inability of one or both vocal folds (vocal cords) to move. The paralysis is usually due to damage to the nerves going to the vocal cords or due to damage to the brain itself. In ...
A paralytic form of rabies caused by the bite of the vampire bat (Desmodus). [paralysis + G. lyssa, madness (rabies)]
Relating to paralysis or suffering from paralysis.
Paralysis of the intestine. To be termed " paralytic ileus," the intestinal paralysis need not be complete, but it must be sufficient to prohibit the passage of food through the ...
To render incapable of movement.
Having the property of paramagnetism; in magnetic resonance imaging, contrast media are chosen for their p. property, which shortens relaxation time.
The property of having a strong magnetic moment from one or more unpaired electrons, causing orientation in a magnetic field; most significant in imaging are ions of certain ...
A mastigote having two flagella, one long and one short. SYN: paraflagellate (2). [para- + G. mastix, whip]
An abundant genus of freshwater holotrichous ciliates, characteristically slipper-shaped and often large enough to be visible to the naked eye; commonly used for genetic and ...
A person trained and certified to provide emergency medical care.
1. Related to the medical profession in an adjunctive capacity, e.g., denoting allied health fields such as physical therapy, speech pathology, etc. 2. Relating to a paramedic. ...
Any disorder or irregularity of menstruation. [para- + G. men, month]
Close to or alongside the embryonic mesonephros. See p. duct.
One of many dimensions or ways of measuring or describing an object or evaluating a subject : 1. In a mathematical expression, an arbitrary constant that can possess different ...
A glucocorticoid with anti-inflammatory effects and toxicity similar to those of prednisone.
- p. acetate acetic ester of p. at C-21; a glucocorticoid useful in the treatment of ...
Relating to the parametrium, or structures immediately adjacent to the uterus.
Inflammation of the tissue adjacent to the uterus, particularly in the broad ligament. SYN: pelvic cellulitis. [ parametrium + G. -itis, inflammation]
The connective tissue of the pelvic floor extending from the fibrous subserous coat of the supracervical portion of the uterus laterally between the layers of the broad ligament. ...
The use of gestures unsuited to the words that they accompany. [para- + G. mimia, imitation]
False recollection, as of events that have never occurred or partial forgetting of events that have occurred. [para- + G. amnesia, forgetfulness]
A supernumerary tooth lying among, lingual, or buccal to the maxillary or mandibular molars.
A family of parasitic trematodes characterized by large fleshy bodies with a large posterior sucker; included are the genera Paramphistomum, Gastrodiscoides, and Watsonius.
Infection of animals and humans with trematodes of the family Paramphistomatidae; human disease is caused by Gastrodiscoides hominis in Asia and Watsonius watsoni in Africa.
The rumen fluke, a genus of digenetic trematodes (family Paramphistomatidae) parasitic in the rumen or paunch of cattle; species include P. microbothrioides, P. cervi, and P. ...
Loss of the ability to read or to render music correctly. [para- + G. mousa, music, + -ia]
1. Deposition in tissues of an amyloid-like protein resembling light chains of immunoglobulins in primary amyloidosis or (particularly) in atypical amyloidosis of multiple ...
An atypical form of myotonia. SYN: paramyotonus.
- ataxic p. a disorder characterized by a tonic muscular spasm on attempted movement, associated with slight paresis and ...
A family of RNA-containing viruses about twice the size of the influenza viruses ( Orthomyxoviridae) but similar to them in morphology. Virions are 150–300 nm in diameter, ...
A genus of viruses (family Paramyxoviridae) that includes parainfluenza viruses (types 1 and 3).
Analgesia of the lower half of the body. [para- + analgesia]
Hormonal, neurologic, hematologic, and other clinical and biochemical disturbances associated with malignant neoplasms but not directly related to invasion by the primary tumor ...
: A group of signs and symptoms caused by a substance produced by a tumor or in reaction to a tumor. Paraneoplastic syndromes can be due to a number of causes including hormones ...
1. Relating to the paranephros. 2. SYN: pararenal.
SYN: suprarenal gland. [para- + G. nephros, kidney]
Anesthesia of the lower half of the body. [para- + anesthesia]
A gland or aggregate of cells containing neurosecretory granules. SYN: neuroendocrine cell (2).
A disease similar to yaws, occurring in Sri Lanka.
A severe but relatively rare mental disorder characterized by the presence of systematized delusions, often of a persecutory character involving being followed, poisoned, or ...
1. Relating to or affected with paranoia. 2. One who is suffering from paranoia.
1. Relating to or characterized by paranoia. 2. Having delusions of persecution.
A form of aphasia in which objects are called by the wrong names. [para- + G. onoma, name]
1. SYN: paranucleate. 2. Outside, but near the nucleus.
Relating to or having a paranucleus. SYN: paranuclear (1).
An accessory nucleus or small mass of chromatin lying outside, though near, the nucleus.
SYN: paraumbilical. [para- + G. omphalos, umbilicus]
Near or adjacent to the mouth. [para- + L. os (or-), mouth]
An organophosphorous cholinesterase inhibitor used in insecticides; parathion is converted in the liver to p..
Weakness affecting the lower extremities. [para- + paresis]
1. Relating to paraparesis. 2. A person with paraparesis.
Excretion or secretion through an abnormal channel. [para- + G. pedesis, a bending, deflection]
SYN: ambulant plague. [para- + L. pestis, plague]
A form of aphasia in which a person has lost the ability to speak correctly, substituting one word for another and jumbling words and sentences unintelligibly. SEE ALSO: jargon. ...
Any disorder of the sense of touch. SYN: pseudesthesia (1), pseudoesthesia (1). [para- + G. haphe, touch]
One of several complex psychiatric disorders that are manifested as deviant sexual behavior. For example, in men the most common forms are pedophilia (sexual behavior or ...
A condition in which the foreskin of the penis, once retracted, cannot return to its original location. The foreskin remains trapped behind the groove of the coronal sulcus ...
Any disorder of the voice, especially a change in its tone. [para- + G. phone, voice]
SYN: paraphasia. [para- + G. phrasis, speech]
A median organ developing from the roofplate of the diencephalon in certain lower vertebrates. Present in the human embryo and fetus for a short time. SYN: paraphysial body. [G. ...
Beside the pineal; denoting the visual or photoreceptive portion of the pineal body present, if not functioning, in certain lizards.
1. Obsolete term for hyaloplasm. 2. Malformed or abnormal tissue. [para- + G. plasma, a thing formed]
Paralysis of both lower extremities and, generally, the lower trunk. [para- + plege, a stroke]
- ataxic p. progressive ataxia and paresis of the leg muscles due to sclerosis of ...
Relating to or suffering from paraplegia.
The genus of viruses (family Poxviridae) that includes the contagious ecthyma of sheep, bovine papular stomatitis, and paravaccinia viruses. They possess the nucleoprotein ...
A condition analogous to paraphasia and paragraphia in which there is a defective performance of purposive acts; e.g., slips of the tongue, or mislaying of objects. [para- + G. ...
Inflammation of the cellular tissue surrounding the rectum. [para- + G. proktos, anus, + -itis, inflammation]
The cellular tissue surrounding the rectum. [para- + G. proktos, anus]
Obsolete term for inflammation of the tissue around the prostate gland. [para- + L. prostata, prostate, + -itis, inflammation]
1. A monoclonal immunoglobulin of blood plasma, observed electrophoretically as an intense band in γ, β, or α regions, due to an isolated increase in a single ...
A heterogenous group of skin disorders unrelated to psoriasis, including pityriasis lichenoides and small and large plaque p..
- p. en plaque a form of large plaque p. in ...
The study of extrasensory perception, such as thought transference ( telepathy) and clairvoyance.
A weedkiller that produces delayed toxic effects on the liver, kidneys, and lungs when ingested; progressive interstitial pneumonia with proliferation of alveolar lining cells ...
: Paraquat, a weed killer, selectively accumulates in the lungs and is highly toxic. Once X-ray changes from paraquat are evident in the lungs, death is virtually certain. ...
Painful or crippling disease of the fingers, first described in Brazilian rubber workers, produced by accidental contact with setae of the larva of the moth, Premolis semirufa; ...
Near or adjacent to the kidneys. SYN: paranephric (2).
Substitution of another sound for that of r. SEE ALSO: rhotacism. [para- + G. rho, letter r]
A tri(aminophenyl)methane hydrochloride; an important red biologic stain used in Schiff reagent to detect cellular DNA ( Feulgen stain), mucopolysaccharides (PAS stain), and ...
A cardiac dysrhythmia in which two independent rhythms coexist, but not as a result of A-V block; p. thus includes parasystole and A-V dissociation (2), but not complete A-V ...
Inflammation of the tissues surrounding the fallopian or the eustachian tube. [para- + salpinx + G. -itis, inflammation]
A large, heavy-bodied ascarid nematode extremely common in the small intestine of horses and other equids. Larvae may develop in humans or mice, but do not reach the adult stage. ...
An organism that lives in or on and takes its nourishment from another organism. A parasite cannot live independently. Parasitic diseases include infections by protozoa, ...
The presence of a parasite in the blood. For example, malarial parasitemia. Parasitemia is analogous to bacteremia (the presence of bacteria in the blood) and viremia (the ...
Having to do with a parasite, as in a parasitic infection; or acting like a parasite by taking nourishment from another.
* * *
1. Relating to or of the nature of a parasite. 2. ...
An agent that destroys parasites. [parasite + L. caedo, to kill]
A symbiotic relationship in which one species (the parasite) benefits at the expense of the other (the host). Cf.:mutualism, commensalism, symbiosis, metabiosis.
- multiple p. ...
Complex of all parasite species and individuals associated with a specific host. SYN: parasite-host ecosystem. [parasite + G. koinos, common, together]
1. Caused by certain parasites. 2. Favoring parasitism. [parasite + G. -gen, producing]
Denoting a feeding relationship intermediate between predation and parasitism, in which the p. eventually destroys its host; refers especially to parasitic wasps (order ...
The branch of biology and of medicine concerned with all aspects of parasitism. [parasite + G. logos, study]
The total mass or number of individuals of all developmental stages of a single parasite species in one host. [parasite + -ome (fr. G. -oma), group, mass]
The special affinity of particular drugs or other agents for parasites rather than for their hosts, including microparasites that infect a larger parasite. Cf.:organotropism. SYN: ...
Any dysfunction associated with sleep, e.g., somnabulism, pavor nocturnus, enureseis, or nocturnal seizures.
A reciprocal relationship among causal mechanisms that can compensate for, or mask defects in, each other; in genetics, a relationship between nonalleles (classified by some as a ...
A narrow region of cortex located between the entorhinal area (or cortex) and the subiculum.
Pertaining to a division of the autonomic nervous system. See autonomic division of nervous system.
Parasympathetic nervous system
A part of nervous system that serves to slow the heart rate, increase the intestinal and gland activity, and relax the sphincter muscles. The parasympathetic nervous system, ...
Relating to an agent that annuls or antagonizes the effects of the parasympathetic nervous system; e.g., atropine.
Relating to drugs or chemicals having an action resembling that caused by stimulation of the parasympathetic nervous system. SEE ALSO: cholinomimetic. [para- + G. sympatheia, ...
Union of chromosomes side to side in the process of reduction. [para- + G. synapsis, a connection, junction]
Inflammation of the tissues immediately adjacent to a joint. [para- + synovitis]
Any condition indirectly due to syphilis. SYN: metasyphilis (2), parasyphilosis, quaternary syphilis.
Denoting certain diseases supposed to be indirectly due to syphilis but presenting none of the recognized lesions of that infection. SYN: metaluetic (3). SYN: metasyphilitic ...
A second automatic rhythm existing simultaneously with normal sinus or other dominant rhythm, the parasystolic center being protected from the dominant rhythm's impulses so that ...
An older term for the psychologic state or repository of attitudes, ideas, and experiences accumulated during personality development that are not effectively assimilated or ...
Passage of an infective agent by one or a series of paratenic hosts in which the agent is transported between hosts but does not undergo further development. [parasite + L. ...
The tissue, fatty or synovial, between a tendon and its sheath. [para- + G. tenon, tendon]
An organic phosphate insecticide, highly toxic to animals and humans, that is an irreversible inhibitor of cholinesterases.
Hormone made by the parathyroid gland (behind the thyroid gland in the neck). Parathormone (pronounced para-thor-mone) is critical to calcium and phosphorus balance. Deficiency ...
Misdirection of the emotional faculties; disordered mood. [para- + G. thymos, soul, mind]
Gland that regulates calcium, located behind the thyroid gland in the neck. The parathyroid secretes a hormone called parathormone (or parathyrin) that is critical to calcium ...
Excision of the parathyroid glands. [ parathyroid + G. ektome, excision]
Parathyroids, hypoplasia of the thymus and
Also known as the DiGeorge syndrome (DGS), this disorder is characterized by (1) low blood calcium levels (hypocalcemia) due to underdevelopment (hypoplasia) of the parathyroid ...
That part of an antibody molecule composed of the variable regions of both the light and heavy chains that combine with the antigen. SYN: antibody-combining site, antigen-binding ...
Any disorder in the growth of the hair, with particular reference to quantity. [para- + G. trichosis, making or being hairy, fr. thrix (trich-), hair]
Chafing. [G. friction, fr. para, beside, + tripsis, rubbing]
Deriving sustenance from living organic material. SEE ALSO: metatrophic, prototrophic. [para- + G. trophe, nourishment]
Inflammation of the connective tissue adjacent to the cecum. [para- + G. typhlon, cecum, + -itis, inflammation]
Near the umbilicus. SYN: paraomphalic, parumbilical.
Former name for Pseudocowpox virus. SYN: milkers' nodules, under nodule.
Inflammation of the connective tissue alongside the vagina. SYN: paracolpitis.
By the side of the axis of any body or part.
A collateral branch of an axon. [para- + G. axon, axis]
A subkingdom that includes the sponges (phylum Porifera), considered by many zoologists to be intermediate between the subkingdoms Protozoa and Metazoa.
1. An animal parasite. 2. A member of the subkingdom Parazoa. [para- + G. zoon, animal]
The sensation as of the crackling of stiff paper or parchment, noted on palpation of the skull in cases of craniotabes.
Ambroïse, French surgeon, 1510–1590. See Paré suture.
Camphorated opium tincture, an antiperistaltic agent containing powdered opium, anise oil, benzoic acid, camphor, glycerin, and diluted alcohol. [G. paregorikos, soothing] ...
P. brava, the root of Chondodendron tomentosum and other species of Chondodendron (family Menispermaceae), a vine of tropical America; one of the chief sources of d-tubocurarine; ...
Not subject to the laws of electricity, i.e., not excited by an electric stimulus. [para- + G. elektron, amber (electricity), + nomos, law]
Congenital defect of brain. [para- + G. enkephalos, brain]
Inflammation of the cerebellum. [parencephalon + G. -itis, inflammation]
Protrusion of the cerebellum through a defect in the cranium. [parencephalon + G. kele, hernia]
The key elements of an organ essential to its functioning, as distinct from the capsule that encompasses it and other supporting structures. The parenchyma is thus opposed to the ...
Inflammation of the parenchyma or differentiated substance of a gland or organ.
1. An individual who has produced at least one offspring through sexual reproduction. 2. Any source or basis, as for the elaboration of a substance. [L. parens, fr. pario, to ...
A parent's attitude of dominance over one or more children. For example, a parent stating "I'm the boss around this house" is a demonstration of parentalism.
By some other means than through the gastrointestinal tract; referring particularly to the introduction of substances into an organism by intravenous, subcutaneous, ...
Gian Carlo, Italian physician. See P.-Fraccaro syndrome.
The lateral recess of the fourth ventricle of the brain. [para- + G. epi, upon, + koilia, a hollow]
An older term for a morbid longing; an abnormal desire or craving. [para- + G. epithymia, desire]
An older term for abnormal or morbid excitement. [para- + G. erethizo, to excite]
Partial or incomplete paralysis. [G. a letting go, slackening, paralysis, fr. paritemi, to let go]
- divergence p. an esodeviation of the eyes that is greater in the distance ...
A part of late ("tertiary") syphilis a decade or more after the initial infection, due to chronic inflammation of the covering and substance of the brain ...