|| ANATOMY || DISEASES || DRUGS || HEALTH TOPICS || USA HEALTH STATS || CHINA HEALTH STATS || GENOMICS || LABORATORY MICE || LUPUS ||
Medical Dictionary banner
Medical Dictionary - Dictionary of Medicine and Human Biology


Medical Dictionary


A B C D E F G H I J K L M N O P Q R S T U V W X Y Z


pylorotomy (pi-lo-rot′o-me)
Incision of the pylorus. [pyloro- + G. tome, incision]

pylorus, pl .pylori (pi-lor′us, pi-lor′i) [TA]
1. A muscular or myovascular device to open (musculus dilator) and to close (musculus sphincter) an orifice or the lumen of an organ. 2. The muscular tissue surrounding and controlling the aboral outlet of the stomach. [L. fr. G. pyloros, a gatekeeper, the p., fr. pyle, gate, + ouros, a warder]

Pym
Sir William, English physician, 1772–1861. See P. fever.

pyo-
Suppuration, accumulation of pus. [G. pyon, pus]

pyocele (pi′o-sel)
An accumulation of pus in the scrotum. [pyo- + G. kele, tumor, hernia]

pyocelia (pi′o-se′le-a)
SYN: pyoperitoneum. [pyo- + G. koilia, a cavity]

pyocephalus (pi′o-sef′a-lus)
A purulent effusion within the cranium. SYN: pyencephalus. [pyo- + G. kephale, head] circumscribed p. abscess of the brain. external p. meningeal suppuration. internal p. intraventricular suppuration.

pyochezia (pi-o-ke′ze-a)
A discharge of pus from the bowel. [pyo- + G. chezo, to defecate]

pyocin (pi′o-sin)
Bacteriocin produced by strains of Pseudomonas pyocyaneus.

pyococcus (pi′o-kok′us)
One of the cocci causing suppuration, especially Streptococcus pyogenes. [pyo- + G. kokkos, berry (coccus)]

pyocolpocele (pi-o-kol′po-sel)
A vaginal tumor or cyst containing pus. [pyo- + G. kolpos, bosom (vagina), + kele, tumor, hernia]

pyocolpos (pi-o-kol′pos)
Accumulation of pus in the vagina. [pyo- + G. kolpos, bosom (vagina)]

pyocyanic (pi′o-si-an′ik)
Relating to blue pus or the organism that causes blue pus, Pseudomonas aeruginosa. [pyo- + G. kyanos, blue]

pyocyanogenic (pi′o-si′a-no-jen′ik)
Causing blue pus. [pyo- + G. kyanos, blue, + -gen, producing]

pyocyanolysin (pi′o-si-a-nol′i-sin)
A hemolysin formed by Pseudomonas aeruginosa.

pyocyst (pi′o-sist)
A cyst with purulent contents. [pyo- + G. kystis, bladder]

pyocystis (pi-o-sis′tis)
Chronic development and retention of excessive amounts of purulent matter in a urinary bladder that may have been defunctionalized by prior supravesical diversion. [pyo- + G. kystis, bladder]

pyocyte (pi′o-sit)
SYN: pus corpuscle. [pyo- + G. kytos, cell]

pyoderma (pi-o-der′ma)
Any pyogenic infection of the skin; may be primary, as impetigo, or secondary to a previously existing condition. [pyo- + G. derma, skin] p. gangrenosum a chronic, noninfective eruption of spreading, undermined ulcers showing central healing, with diffuse dermal neutrophil infiltration; often associated with ulcerative colitis. secondary p. a p. in which an existing skin lesion ( e.g., eczema, herpes, seborrheic dermatitis) becomes secondarily infected. p. vegetans SYN: dermatitis vegetans.

pyogen (pi′o-jen)
An agent that causes pus formation. [pyo- + G. -gen, producing]

pyogenesis (pi′o-jen′e-sis)
SYN: suppuration. [pyo- + G. genesis, production]

pyogenic, pyogenetic (pi-o-jen′ik, -je-net′ik)
Pus-forming; relating to pus formation. SYN: pyogenous.

pyogenous (pi-oj′e-nus)
SYN: pyogenic.

pyohemia (pi-o-he′me-a)
A rarely used term for pyemia.

pyohemothorax (pi′o-he-mo-thor′aks)
Presence of pus and blood in the pleural cavity. [pyo- + G. haima, blood, + thorax]

pyoid (pi′oyd)
Resembling pus. [G. pyodes, fr. pyon, pus, + eidos, resemblance]

pyometra (pi-o-me′tra)
Accumulation of pus in the uterine cavity. [pyo- + G. metra, uterus]

pyometritis (pi′o-me-tri′tis)
Inflammation of uterine musculature associated with pus in the uterine cavity. [pyo- + G. metra, womb, + -itis, inflammation]

pyomyositis (pi′o-mi-o-si′tis)
Abscesses, carbuncles, or infected sinuses lying deep in muscles. [pyo- + G. mys, muscle, + -itis, inflammation] tropical p. a disease observed in Samoa and in tropical Africa, marked by pains in the extremities, fever of a remittent or intermittent type, and abscesses in the muscles in various parts of the body (may result in death from sepsis); causative organisms are Staphylococcus aureus and Streptococcus pyogenes, but usually the disease is associated with parasitic infections. SYN: bungpagga, lambo lambo, myositis purulenta tropica, tropical myositis.

pyonephritis (pi-o-ne-fri′tis)
Suppurative inflammation of the kidney. [pyo- + G. nephros, kidney, + -itis, inflammation]

pyonephrolithiasis (pi′o-nef′ro-li-thi′a-sis)
Presence in the kidney of pus and calculi. [pyo- + G. nephros, kidney, + lithos, stone, + -iasis, condition]

pyonephrosis (pi′o-ne-fro′sis)
Distention of the pelvis and calices of the kidney with pus, usually associated with obstruction. SYN: nephropyosis. [pyo- + G. nephros, kidney, + -osis, condition]

pyo-ovarium (pi′o-o-var′e-um)
Presence of pus in the ovary; an ovarian abscess.

pyopericarditis (pi′o-per-i-kar-di′tis)
Suppurative inflammation of the pericardium.

pyopericardium (pi′o-per-i-kar′de-um)
SYN: purulent pericarditis.

pyoperitoneum (pi′o-per-i-to-ne′um)
An accumulation of pus in the peritoneal cavity. SYN: pyocelia. [G. pyon, pus]

pyoperitonitis (pi′o-per-i-to-ni′tis)
Suppurative inflammation of the peritoneum. [pyo- + peritonitis]

pyophysometra (pi′o-fi-so-me′tra)
Presence of pus and gas in the uterine cavity. [pyo- + G. physa, air, + metra, uterus]

pyopneumocholecystitis (pi′o-noo′mo-ko′le-sis-ti′tis)
Combination of pus and gas in an inflamed gallbladder caused by gas-producing organisms or by the entry of air from the duodenum through the biliary tree. [pyo- + G. pneuma, air, + cholecystitis]

pyopneumohepatitis (pi′o-noo′mo-hep-a-ti′tis)
Combination of pus and air in the liver, usually in association with an abscess. [pyo- + G. pneuma, air, + hepatitis]

pyopneumopericardium (pi′o-noo′mo-per-i-kar′de-um)
Presence of pus and gas in the pericardial sac. [pyo- + G. pneuma, air, + pericardium]

pyopneumoperitoneum (pi′o-noo′mo-per-i-to-ne′um)
Presence of pus and gas in the peritoneal cavity. [pyo- + G. pneuma, air, + peritoneum]

pyopneumoperitonitis (pi′o-noo′mo-per-i-to-ni′tis)
Peritonitis with gas-forming organisms or with gas introduced from a ruptured bowel. [pyo- + G. pneuma, air, + peritonitis]

pyopneumothorax (pi′o-noo-mo-thor′aks)
The presence of gas together with a purulent effusion in the pleural cavity. [pyo- + G. pneuma, air, + thorax] subdiaphragmatic p., subphrenic p. subphrenic abscess associated with perforation of one of the hollow viscera, with gas in the chest and abdomen.

pyopoiesis (pi′o-poy-e′sis)
SYN: suppuration. [pyo- + G. poiesis, a making]

pyopoietic (pi′o-poy-et′ik)
Pus-producing.

pyopyelectasis (pi′o-pi-e-lek′ta-sis)
Dilation of the renal pelvis with pus-producing inflammation. [pyo- + G. pyelos, pelvis, + ektasis, a stretching]

pyorrhea (pi-o-re′a)
A purulent discharge. [pyo- + G. rhoia, a flow]

pyosalpingitis (pi′o-sal-pin-ji′tis)
Suppurative inflammation of the uterine (fallopian) tube. [pyo- + salpingitis]

pyosalpingo-oophoritis (pi-o-sal′ping-go-o-of′o-ri′tis)
Suppurative inflammation of the uterine (fallopian) tube and the ovary. SYN: pyosalpingo-oothecitis. [pyo- + G. salpinx, trumpet (tube), + oophoritis]

pyosalpingo-oothecitis (pi-o-sal′ping-go-o′o-the-si′tis)
SYN: pyosalpingo-oophoritis. [pyo- + G. salpinx, trumpet (tube), + Mod. L. ootheca, ovary, + G. -itis, inflammation]

pyosalpinx (pi-o-sal′pingks)
Distention of a uterine (fallopian) tube with pus. SYN: pus tube. [pyo- + G. salpinx, trumpet (tube)]

pyosemia (pi-o-se′me-a)
Presence of pus in seminal fluid, often associated with chronic prostatitis or other inflammatory conditions of the male genital tract. SYN: pyospermia. [pyo- + L. semen, seed (of man)]

pyosepticemia (pi′o-sep-ti-se′me-a)
Infection of the blood with several forms of bacteria, so-called pyogenic and also nonpyogenic organisms. [pyo- + G. septikos, putrefying, + haima, blood]

pyosis (pi-o′sis)
SYN: suppuration. [G.]

pyospermia (pi-o-sper′me-a)
SYN: pyosemia. [pyo- + G. sperma, seed, + ia, condition]

pyostatic (pi-o-stat′ik)
1. Arresting the formation of pus. 2. An agent that arrests the formation of pus. [pyo- + G. statikos, causing to stand]

pyostomatitis (pi′o-sto-ma-ti′tis)
A suppurating inflammatory eruption of the mouth. [pyo- + G. stoma, mouth, + -itis, inflammation] p. vegetans confluent pustular lesions of the mouth, with proliferative and verrucose eruptions of the buccal mucous membrane; associated with ulcerative colitis and other wasting diseases.

pyothorax (pi-o-thor′aks)
Empyema in a pleural cavity.

pyourachus (pi-o-u′ra-kus)
A purulent accumulation in the urachus.

pyoureter (pi-o-u-re′ter)
Distention of a ureter with pus.

Pyr
Abbreviation for pyrimidine; pyroglutamic acid.

pyr-
Fire, heat. SEE ALSO: pyreto-, pyro- (1) . [G. pyr]

pyracin (pir′a-sin)
Pyridoxolactone, the lactone of 4-pyridoxic acid.

pyramid (pir′a-mid) [TA]
1. A term applied to a number of anatomic structures having a more or less pyramidal shape. SYN: pyramis [TA] . 2. A term denoting the petrous portion of the temporal bone. [G. pyramis (p.-), a p.] anterior p. SYN: p. of medulla oblongata. cerebellar p. SYN: p. of vermis. Ferrein p. SYN: medullary ray. Lallouette p. SYN: pyramidal lobe of thyroid gland. p. of light SYN: light reflex (3) . Malacarne p. a lobule on the undersurface of the cerebellum, the posterior portion of the vermis. malpighian p. SYN: renal pyramids. p. of medulla oblongata an elongated, white prominence on the ventral surface of the medulla oblongata on either side along the anterior median fissure, corresponding to the position of fibers forming the corticospinal tracts. SYN: pyramis medullae oblongatae [TA] , anterior column of medulla oblongata, anterior p.. medullary p. SYN: renal pyramids. olfactory p. a small area of gray matter situated between the roots of the olfactory tracts; it is continuous caudally with the anterior perforated substance. petrous p. SYN: petrous part of temporal bone. population p. graphic representation of the age and sex composition of a population, constructed by computing the percentage distribution of the population in each age and sex class. posterior p. of the medulla SYN: gracile fasciculus. renal pyramids [TA] pyramidal masses seen on longitudinal section of the kidney; collectively, they constitute the renal medullae and contain part of the secreting tubules and the collecting tubules. SYN: malpighian p., medullary p., pyramides renales, pyramis renalis. p. of thyroid SYN: pyramidal lobe of thyroid gland. p. of tympanum SYN: eminentia pyramidalis. p. of vermis [TA] a subdivision of the inferior vermis of the cerebellum between the tuber and the uvula; vermis lobule VIII. SYN: cerebellar p., pyramis [TA] of cerebellum. p. of vestibule [TA] the upper triangular extremity of the crista vestibuli. SYN: pyramis vestibuli [TA] .

pyramidal (pi-ram′i-dal)
1. Of the shape of a pyramid. 2. Relating to any anatomical structure called pyramid.

pyramidale (pi-ram′i-da′le)
SYN: triquetrum. [Mod. L.]

pyramidalis
See p. (muscle).

pyramidotomy (pi-ram′i-dot′o-me)
Section of pyramidal tracts, in the spinal cord, for the relief of involuntary movements. [G. pyramis, pyramid, + tome, incision] medullary p. a medullary pyramidal tractotomy. spinal p. a spinal pyramidal tractotomy.




A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

. . . Feedback