English dictionary of medical terms (71)

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[Multilingual]No:1400 - priapism
(L. priapismus; Gr. priapismos) persistent abnormal erection of the penis, usually without sexual desire, and accompanied by pain and tenderness. It is seen in diseases and injuries of the spinal cord, and may be caused by vesical calculus and certain injuries to the penis.
[Multilingual]No:1401 - primary
(L. primarius) principal; primus first) first in order or in time of development; principal.
[Multilingual]No:1402 - primary vaccination
first or principal vaccination ( = introduction of a vaccine into the body for the purpose of inducing immunity).
[Multilingual]No:1403 - procedure
(L. procedere, from pro forward + cedere move) a series of steps by which a desired result is accomplished.
[Multilingual]No:1404 - procreation
(L. procreatio) the entire process of bringing a new individual into the world.
[Multilingual]No:1405 - proctitis
(proct- + -itis) inflammation of the rectum.
[Multilingual]No:1406 - production
the act or process of producing, bringing forth, or making.
[Multilingual]No:1407 - productive
producing or forming; said especially of an inflammation that produces new tissue or of a cough that brings forth sputum or mucus.
[Multilingual]No:1408 - progestogen
a term applied to any substance possessing progestational activity.
[Multilingual]No:1409 - prognosis
(Gr. prognosis foreknowledge) a forecast as to the probable outcome of an attack of disease; the prospect as to recovery from a disease as indicated by the nature and symptoms of the case.
[Multilingual]No:1410 - progressive
advancing; going forward; going from bad to worse; increasing in scope or severity.
[Multilingual]No:1411 - prolapse
(L. prolapsus; pro before + labi to fall) 1. the falling down, or sinking, of a part or viscus; procidentia. 2. to undergo such displacement.
[Multilingual]No:1412 - proliferation
(L. proles offspring + ferre to bear) the reproduction or multiplication of similar forms, especially of cells and morbid cysts.
[Multilingual]No:1413 - prophylaxis
(Gr. prophylassein to keep guard before) the prevention of disease; preventive treatment.
[Multilingual]No:1414 - proportional
being in proportion : corresponding in size, degree, or intensity, having the same or a constant ratio; of, relating to, or used in determining proportions.
[Multilingual]No:1415 - proptosis
forward projection or displacement especially of the eyeball : exophthalmos.
[Multilingual]No:1416 - propulsive
tending or having power to propel; driving onward or forward; impelling to action or motion.
[Multilingual]No:1417 - prostaglandin
(prostate gland + -in because they were originally discovered in semen) any of a group of components derived from unsaturated 20-carbon fatty acids, primarily arachidonic acid, via the cyclooxygenase pathway that are extremely potent mediators of a diverse group of physiologic processes. The abbreviation for prostaglandin is PG; specific compounds are designated by adding one of the letters A through I to indicate the type of substituents found on the hydrocarbon skeleton and a subscript (1, 2 or 3) to indicate the number of double bonds in the hydrocarbon skeleton e.g., PGE2. The predominant naturally occurring prostaglandins all have two double bonds and are synthesized from arachidonic acid (5,8,11,14-eicosatetraenoic acid) by the pathway shown in the illustration. The 1 series and 3 series are produced by the same pathway with fatty acids having one fewer double bond (8,11,14-eicosatrienoic acid or one more double bond (5,8,11,14,17-eicosapentaenoic acid) than arachidonic acid. The subscript a or ß indicates the configuration at C-9 (a denotes a substituent below the plane of the ring, ß, above the plane). The naturally occurring PGF's have the a configuration, e.g., PGF2a. All of the prostaglandins act by binding to specific cell-surface receptors causing an increase in the level of the intracellular second messenger cyclic AMP (and in some cases cyclic GMP also). The effect produced by the cyclic AMP increase depends on the specific cell type. In some cases there is also a positive feedback effect. Increased cyclic AMP increases prostaglandin synthesis leading to further increases in cyclic AMP.
[Multilingual]No:1418 - prostatism
a symptom complex resulting from compression or obstruction of the urethra, due most commonly to hyperplasia of the prostate; symptoms include diminution in the calibre and force of the urinary stream, hesitancy in initiating voiding, inability to terminate micturition abruptly (with postvoiding dribbling), a sensation of incomplete bladder emptying, and, occasionally, urinary retention.
[Multilingual]No:1419 - prostatitis
inflammation of the prostate.
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