| propenyl | <chemistry> A hypothetical hydrocarbon radical, C3H5, isomeric with allyl and glyceryl, and regarded as the essential residue of glycerin. Cf. Allyl, and Glyceryl. Origin: Propene + -yl. Source: Websters Dictionary (01 Mar 1998) |
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| propepsin | <physiology> See Persinogen. Origin: Pref. Pro- + pepsin. Source: Websters Dictionary (01 Mar 1998) |
| propeptone | <physiology> A product of gastric digestion intermediate between albumin and peptone, identical with hemialbumose. Origin: Pref. Pro- + peptone. Source: Websters Dictionary (01 Mar 1998) |
| proper | 1. Belonging to one; one's own; individual. "His proper good" [i. E, his own possessions] . "My proper son." "Now learn the difference, at your proper cost, Betwixt true valor and an empty boast." (Dryden) 2. Belonging to the natural or essential constitution; peculiar; not common; particular; as, every animal has his proper instincts and appetites. "Those high and peculiar attributes . . . Which constitute our proper humanity." (Coleridge) 3. Befitting one's nature, qualities, etc.; suitable in all respect; appropriate; right; fit; decent; as, water is the proper element for fish; a proper dress. "The proper study of mankind is man." (Pope) "In Athens all was pleasure, mirth, and play, All proper to the spring, and sprightly May." (Dryden) 4. Becoming in appearance; well formed; handsome. "Thou art a proper man." "Moses . . . Was hid three months of his parents, because they saw he was a proper child." (Heb. Xi. 23) 5. Pertaining to one of a species, but not common to the whole; not appellative; opposed to common; as, a proper name; Dublin is the proper name of a city. 6. Rightly so called; strictly considered; as, Greece proper; the garden proper. 7. Represented in its natural colour; said of any object used as a charge. In proper, individually; privately. <botany> Proper flower or corolla, a receptacle which supports only a single flower or fructification. Origin: OE. Propre, F. Propre, fr. L. Proprius. Cf. Appropriate. Source: Websters Dictionary (01 Mar 1998) |
| proper fasciculi | Flechsig's fasciculi or ground bundles (f. Anterior proprius and fasciculus lateralis proprius or lateral ground bundle); intersegmental fasciculi; ascending and descending association fibre systems of the spinal cord which lie deep in the anterior, lateral, and posterior funiculi adjacent to the gray matter. Synonym: ground bundles, intersegmental fasciculi, proper fasciculi. (05 Mar 2000) |
| proper hepatic artery | <anatomy, artery> Origin, common hepatic; branches, right and left hepatic. Synonym: arteria hepatica propria. (05 Mar 2000) |
| proper ligament of ovary | <anatomy> A cordlike bundle of fibres passing to the side of the uterus from the lower end of the ovary, between the folds of the broad ligament (mesovarium). Synonym: ligamentum ovarii proprium, proper ligament of ovary. (05 Mar 2000) |
| proper occlusion | <dentistry> A beautiful smile where all of your teeth are straight and your top teeth line up with your bottom teeth. (08 Jan 1998) |
| proper palmar digital artery | <anatomy, artery> Terminal branches of the common palmar digital artery that pass to the side of each finger. Synonym: arteria digitalis palmaris propria, collateral digital artery, digital collateral artery. (05 Mar 2000) |
| proper palmar digital nerves | The palmar nerves of the digits of the hand derived from common palmar digital nerves; each nerve supplies a palmar quadrant of a digit and a part of the dorsal surface of the distal phalanx. Synonym: nervi digitales palmares proprii. (05 Mar 2000) |
| proper plantar digital artery | <anatomy, artery> One of the digital branches of the plantar metatarsal arteries. Synonym: arteria digitalis plantaris propria. (05 Mar 2000) |
| proper plantar digital nerves | The ten nerves derived from the common plantar digital nerves; each nerve supplies a plantar quadrant of a toe and part of the dorsal surface of the distal phalanx. Synonym: nervi digitales plantares proprii. (05 Mar 2000) |
| proper substance | See: substantia propria of cornea, substantia propria membranae tympani, substantia propria sclerae. (05 Mar 2000) |
| properdin | <protein> Component of the alternative pathway for complement activation: complexes with C3b and stabilises the alternative pathway C3 convertase (C3bBbP) that cleaves C3. (18 Nov 1997) |
| properdin factor A | A component of the properdin system; a hydrazine-sensitive b1-globulin (mw about 180,000), now known to be C3 (third component of complement). (05 Mar 2000) |