| petaurist | <zoology> Any flying marsupial of the genera Petaurus, Phalangista, Acrobata, and allied genera. See Flying mouse, under Flying, and Phalangister. Origin: L. Petaurista a ropedancer, Gr, fr. To dance on a rope, fr. A pole, a stage for ropedancers: cf. F. Petauriste. Source: Websters Dictionary (01 Mar 1998) |
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| petechia | A pinpoint, nonraised, perfectly round, purplish red spot caused by intradermal or submucous haemorrhage. Compare: ecchymosis. (18 Nov 1997) |
| petechiae | Small red spots on the skin that usually indicate a low platelet count. (16 Dec 1997) |
| petechial | <medicine> Characterised by, or pertaining to, petechiae; spotted. Petechial fever, a malignant fever, accompanied with livid spots on the skin. Origin: Cf. F. Petechial, LL. Petecchialis. Source: Websters Dictionary (01 Mar 1998) |
| petechial angiomas | Multiple lesions resembling petechiae but due to dilation of capillary walls; they are obliterated by pressure. Angioma serpiginosum, the presence of rings of red dots on the skin, especially in female children, which tend to widen peripherally, due to dilatation of superficial capillaries. Synonym: essential telangiectasia, primary telangiectasia. Spider angioma, a telangiectatic arteriole in the skin with radiating capillary branches simulating the legs of a spider; characteristic, but not pathognomonic of, parenchymatous liver disease; also seen in pregnancy, often disappearing after delivery, and at times in normal persons. Synonym: arterial spider, nevus arachnoideus, nevus araneus, spider haemangioma, spider mole, spider nevus, spider telangiectasia, spider, vascular spider. (05 Mar 2000) |
| petechial fever | idiopathic thrombocytopenic purpura |
| petechial haemorrhage | Capillary haemorrhage into the skin that forms petechiae. Synonym: punctate haemorrhage. (05 Mar 2000) |
| petechiasis | Formation of petechiae or purpura. (05 Mar 2000) |
| peter | A common baptismal name for a man. The name of one of the apostles, Peter boat, a fishing boat, sharp at both ends, originally of the Baltic Sea, but now common in certain English rivers. Peter Funk, the auctioneer in a mock auction. Peter pence, or Peter's pence. An annual tax or tribute, formerly paid by the English people to the pope, being a penny for every house, payable on Lammas or St.Peter's day; called also Rome scot, and hearth money. In modern times, a voluntary contribution made by Roman Catholics to the private purse of the pope. <zoology> Peter's fish, a haddock; so called because the black spots, one on each side, behind the gills, are traditionally said to have been caused by the fingers of St. Peter, when he caught the fish to pay the tribute. The name is applied, also, to other fishes having similar spots. Source: Websters Dictionary (01 Mar 1998) |
| peterel | <zoology> See Petrel. Source: Websters Dictionary (01 Mar 1998) |
| peterman | A fisherman; so called after the apostle Peter. Source: Websters Dictionary (01 Mar 1998) |
| Peters' anomaly | <syndrome> A congenital disorder originating from faulty separation of embryonic structures; it results in bilateral central corneal opacities, with an anterior ring attachment of the iridic pupillary border and anterior polar cataracts; associated with short-limbed dwarfism; autosomal dominant inheritance. See: iridocorneal endothelial syndrome. Synonym: Peters' anomaly. (05 Mar 2000) |
| Peters' ovum | An ovum with a presumptive fertilization age of about 13 days; for many years, it was one of very few young human embryos recovered in good condition and its study furnished many facts regarding early embryonic changes. (05 Mar 2000) |
| Peters, Albert | <person> German physician, 1862-1938. See: Peters' anomaly. (05 Mar 2000) |
| Peters, Hubert | <person> Austrian obstetrician, 1859-1934. See: Peters' ovum. (05 Mar 2000) |