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Medical Dictionary


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paravertebral (par-a-ver′te-bral)
Alongside a vertebra or the vertebral column.

paravesical (par-a-ves′i-kal)
SYN: paracystic.

paraxial (par-ak′se-al)
By the side of the axis of any body or part.

paraxon (par-ak′son)
A collateral branch of an axon. [para- + G. axon, axis]

Parazoa (par-a-zo′a)
A subkingdom that includes the sponges (phylum Porifera), considered by many zoologists to be intermediate between the subkingdoms Protozoa and Metazoa.

parazoon (par-a-zo′on)
1. An animal parasite. 2. A member of the subkingdom Parazoa. [para- + G. zoon, animal]

parchment crackling (parch′ment krak′ling)
The sensation as of the crackling of stiff paper or parchment, noted on palpation of the skull in cases of craniotabes.

Paré
Ambroïse, French surgeon, 1510–1590. See Paré suture.

paregoric (par-e-gor′ik)
Camphorated opium tincture, an antiperistaltic agent containing powdered opium, anise oil, benzoic acid, camphor, glycerin, and diluted alcohol. [G. paregorikos, soothing]

pareira (pa-ra′-ra)
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; it has diuretic and urinary antiseptic properties. [Pg. parreira, vine trained against a wall]

parelectronomic (par′e-lek-tro-nom′ik)
Not subject to the laws of electricity, i.e., not excited by an electric stimulus. [para- + G. elektron, amber (electricity), + nomos, law]

parencephalia (par′en-se-fa′le-a)
Congenital defect of brain. [para- + G. enkephalos, brain]

parencephalitis (par′en-sef-a-li′tis)
Inflammation of the cerebellum. [parencephalon + G. -itis, inflammation]

parencephalocele (par-en-sef′a-lo-sel)
Protrusion of the cerebellum through a defect in the cranium. [parencephalon + G. kele, hernia]

parencephalous (par-en-sef′a-lus)
Relating to parencephalia.

parenchyma (pa-reng′ki-ma) [TA]
1. The distinguishing or specific cells of a gland or organ, contained in and supported by the connective tissue framework, or stroma. 2. The endoplasm of a protozoan cell. [G. anything poured in beside, fr. parencheo, to pour in beside] p. glandulae thyroideae [TA] SYN: p. of thyroid gland. p. prostatae [TA] SYN: p. of prostate. p. of prostate [TA] the basis cellular tissue (substance) composing the prostate. SYN: p. prostatae [TA] . p. testis [TA] SYN: p. of testis. p. of testis [TA] the basic cellular tissue substance composing the testis, consisting of the seminiferous tubules and interstitial cells (Leydig and Sertoli cells) located within the lobules. SYN: p. testis [TA] . p. of thyroid gland [TA] the basic cellular tissue (substance) composing the thyroid gland, organized as follicles. SYN: p. glandulae thyroideae [TA] .

parenchymal (pa-reng′ki-mal)
SYN: parenchymatous.

parenchymatitis (pa-reng′ki-ma-ti′tis)
Inflammation of the parenchyma or differentiated substance of a gland or organ.

parenchymatous (par′eng-kim′a-tus)
Relating to the parenchyma. SYN: parenchymal.

parent (par′ent)
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 bring forth]

parenteral (pa-ren′ter-al)
By some other means than through the gastrointestinal tract; referring particularly to the introduction of substances into an organism by intravenous, subcutaneous, intramuscular, or intramedullary injection. [para- + G. enteron, intestine]

Parenti
Gian Carlo, Italian physician. See P.-Fraccaro syndrome.

parepicele (par-ep′i-sel)
The lateral recess of the fourth ventricle of the brain. [para- + G. epi, upon, + koilia, a hollow]

parepididymis (par′ep′i-did′i-mis)
SYN: paradidymis.

parepithymia (par′ep-i-thi′me-a)
An older term for a morbid longing; an abnormal desire or craving. [para- + G. epithymia, desire]

parerethisis (par-e-reth′i-sis)
An older term for abnormal or morbid excitement. [para- + G. erethizo, to excite]

paresis (pa-re′sis, par′e-sis)
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 than near, which may be a sign of central nervous system disease or a mild bilateral 6th nerve palsy. general p. SYN: paretic neurosyphilis.

paresthesia (par-es-the′ze-a)
An abnormal sensation, such as of burning, pricking, tickling, or tingling. SYN: paraesthesia. [para- + G. aisthesis, sensation]

paresthetic (par-es-thet′ik)
Relating to or marked by paresthesia; denoting numbness and tingling in an extremity that usually occurs on the resumption of the blood flow to a nerve following temporary pressure or mild injury.

paretic (pa-ret′ik)
Relating to or suffering from paresis.

pareunia (par-u′ne-a)
SYN: coitus. [G. pareunos, lying beside, fr. para, beside, + eune, a bed]

pargyline hydrochloride (par′ji-len)
A nonhydrazine monoamine oxidase inhibitor, used as an antihypertensive agent.

paridrosis (par-i-dro′sis)
Any derangement of perspiration. SYN: parahidrosis. [para- + G. hidrosis, sweating]

paries, gen. parietis, pl .parietes (par′i-ez, pa′ri-ez; pa-ri′e-tez) [TA]
SYN: wall. [L. wall] p. anterior gastris [TA] SYN: anterior wall of stomach. p. anterior vaginae [TA] SYN: anterior wall of vagina. p. caroticus cavi tympani [TA] SYN: carotid wall of tympanic cavity. p. externus ductus cochlearis [TA] SYN: external surface of cochlear duct. p. inferior orbitae [TA] SYN: floor of orbit. p. jugularis cavi tympani [TA] SYN: jugular wall of middle ear. p. labyrinthicus cavi tympani [TA] SYN: labyrinthine wall of tympanic cavity. p. lateralis orbitae [TA] SYN: lateral wall of orbit. p. mastoideus cavi tympani [TA] SYN: mastoid wall of tympanic cavity. p. medialis orbitae [TA] SYN: medial wall of orbit. p. membranaceus cavi tympani [TA] SYN: membranous wall of tympanic cavity. p. membranaceus tracheae [TA] SYN: membranous wall of trachea. p. posterior gastris [TA] SYN: posterior wall of stomach. p. posterior vaginae [TA] SYN: posterior wall of vagina. p. superior orbitae [TA] SYN: roof of orbit. p. tegmentalis cavi tympani [TA] SYN: tegmental wall of tympanic cavity. p. tympanicus ductus cochlearis [TA] SYN: tympanic surface of cochlear duct. p. vestibularis ductus cochlearis [TA] SYN: vestibular surface of cochlear duct.

parietal (pa-ri′e-tal)
1. Relating to the wall of any cavity. 2. SYN: somatic (1) . 3. SYN: somatic (2) . 4. Relating to the p. bone.

parietes (pa-ri′e-tez)
Plural of paries. [L.]

parieto-
A wall (of the body, e.g., the abdominal wall); a parietal bone. [L. paries, wall]

parietofrontal (pa-ri′e-to-fron′tal)
Relating to the parietal and the frontal bones or the parts of the cerebral cortex corresponding thereto.

parietography (pa-ri′e-tog′ra-fe)
Rarely used term for a radiographic examination of the wall of the stomach using a combination of pneumoperitoneum and intraluminal air and barium. [parieto- + G. graphe, a writing]

parietomastoid (pa-ri′e-to-mas′toyd)
Relating to the parietal bone and the mastoid portion of the temporal bone.

parietooccipital (pa-ri′e-to-ok-sip′i-tal)
Relating to the parietal and occipital bones or to the parts of the cerebral cortex corresponding thereto.

parietosphenoid (pa-ri′e-to-sfe′noyd)
Relating to the parietal and the sphenoid bones.

parietosplanchnic (pa-ri′e-to-splangk′nik)
SYN: parietovisceral.

parietosquamosal (pa-ri′e-to-skwa-mo′sal)
Relating to the parietal bone and the squamous portion of the temporal bone.

parietotemporal (pa-ri′e-to-tem′po-ral)
Relating to the parietal and the temporal bones.

parietovisceral (pa-ri′e-to-vis′er-al)
Relating to the wall of a cavity and to the contained viscera. SYN: parietosplanchnic.

Parinaud
Henri, French ophthalmologist, 1844–1905. See P. conjunctivitis, P. ophthalmoplegia, P. syndrome, P. oculoglandular syndrome.

Paris green
Cupric acetoarsenite, used as an insecticide and as a pigment.

Paris yellow [C.I. 77600]
SYN: chrome yellow.

parity (par′i-te)
The condition of having given birth to an infant or infants, alive or dead; a multiple birth is considered as a single parous experience. [L. pario, to bear]

Park
William H., U.S. bacteriologist, 1863–1939. See P.-Williams fixative.

Park
Henry, British surgeon, 1745–1831. See P. aneurysm.

Parker
Edward Mason, U.S. surgeon, 1860–1941. See P.-Kerr suture.

Parkinson
James, British physician, 1755–1824. See parkinsonism (1) , P. disease, P. facies.

Parkinson
Sir John, British cardiologist, 1885–1976. See Wolff-P.-White syndrome.

parkinsonian (par-kin-so′ne-an)
Relating to or the suffering from parkinsonism (1).

parkinsonism (par′kin-son-izm)
1. A neurologic syndrome usually resulting from deficiency of the neurotransmitter dopamine as the consequence of degenerative, vascular, or inflammatory changes in the basal ganglia; characterized by rhythmic muscular tremors, rigidity of movement, festination, droopy posture, and masklike facies. SYN: Parkinson disease, shaking palsy, trembling palsy. 2. A syndrome similar to p. appearing as a side effect of certain antipsychotic drugs. [J. Parkinson]

Parnas
Jakob Karol, Polish physiologic chemist, 1884–1955. See Embden-Meyerhof-P. pathway.

paroccipital (par′ok-sip′i-tal)
Near or beside the occipital bone or the occiput. [para- + occipital]

parodontitis (par′o-don-ti′tis)
Obsolete term for periodontitis.

parodontium (par-o-don′she-um)
SYN: periodontium. [para- + G. odous, tooth]

parodynia (par-o-din′e-a)
SYN: labor pains, under pain. [L. pario, to bear, + G. odyne, pain]

parole (pa-rol′)
In psychiatry, term for conditional release of a formally committed patient from a mental hospital prior to formal discharge, so that the patient may be returned to the hospital if necessary without fresh legal action. [Fr., fr. L. parabola, discourse, fr G. parabole]

parolfactory (par-ol-fak′tor-e)
Associated with or related to the olfactory system.

parolivary (par-ol′i-var-e)
By the side of or near the oliva. [para- + L. oliva, olive]

paromomycin sulfate (par′o-mo-mi′sin)
A broad-spectrum antibiotic produced by Streptomyces rimosus forma paromomycinus; used in the treatment of bacterial enteritis and amebiasis, and for preoperative suppression of intestinal bacteria.

paromphalocele (par-om′fa-lo-sel)
1. A tumor near the umbilicus. 2. A hernia through a defect in the abdominal wall near the umbilicus. [para- + G. omphalos, umbilicus, + kele, tumor, hernia]

Parona
Francesco, 19th century Italian surgeon. See P. space.

paronychia (par-o-nik′e-a)
Suppurative inflammation of the nail fold surrounding the nail plate; may be due to bacteria or fungi, most commonly staphylococci and streptococci. [para- + G. onyx, nail]




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