| peak flow rate | Maximum urinary flow rate during voiding as measured by a uroflowmeter. (05 Mar 2000) |
|---|---|
| peak magnitude | The greatest amplitude. (05 Mar 2000) |
| peak plasma drug concentration | <pharmacology> The highest level of drug that can be obtained in the blood usually following multiple doses. (09 Oct 1997) |
| peal | <zoology> A small salmon; a grilse; a sewin. Origin: Etymol. Uncertain. Source: Websters Dictionary (01 Mar 1998) |
| peanut | <botany> The fruit of a trailing leguminous plant (Arachis hypogaea); also, the plant itself, which is widely cultivated for its fruit. The fruit is a hard pod, usually containing two or three seeds, sometimes but one, which ripen beneath the soil. Synonym: earthnut, groundnut, and goober. Source: Websters Dictionary (01 Mar 1998) |
| peanut agglutinin | <protein> Lectin from Arachis hypogaea that binds to glycoproteins containing _ D gal (1_3) D galNAc in membranes, used to investigate differential adhesiveness in developing systems. (18 Nov 1997) |
| peanut oil | Oil extracted from the kernels of one or more cultivated varieties of Arachis hypogaea (family Leguminosae); used as a solvent for intramuscular injections and in the preparation of foods. Synonym: arachis oil. (05 Mar 2000) |
| peanuts | A leguminous annual herb, arachis hypogaea, that yields edible seeds containing high quality proteins, several lectins, and oils. (12 Dec 1998) |
| pear | <botany> The fleshy pome, or fruit, of a rosaceous tree (Pyrus communis), cultivated in many varieties in temperate climates; also, the tree which bears this fruit. See Pear family, below. Pear blight. <botany> The larva of a sawfly which is very injurious to the foliage of the pear tree. Origin: OE. Pere, AS. Peru, L. Pirum: cf. F. Poire. Cf. Perry. Source: Websters Dictionary (01 Mar 1998) |
| pear-shaped area | A cushioned mass of tissue, frequently pear-shaped, located on the alveolar process of the mandible behind the area of the last natural molar tooth. Synonym: pear-shaped area. (05 Mar 2000) |
| pearl | 1. <marine biology, zoology> A shelly concretion, usually rounded, and having a brilliant luster, with varying tints, found in the mantle, or between the mantle and shell, of certain bivalve mollusks, especially in the pearl oysters and river mussels, and sometimes in certain univalves. It is usually due to a secretion of shelly substance around some irritating foreign particle. Its substance is the same as nacre, or mother-of-pearl. Pearls which are round, or nearly round, and of fine luster, are highly esteemed as jewels, and compare in value with the precious stones. 2. Hence, figuratively, something resembling a pearl; something very precious. "I see thee compassed with thy kingdom's pearl." (Shak) "And those pearls of dew she wears." (Milton) 3. Nacre, or mother-of-pearl. 4. <marine biology> A fish allied to the turbot; the brill. 5. <ornithology> A light-coloured tern. 6. <zoology> One of the circle of tubercles which form the bur on a deer's antler. 7. A whitish speck or film on the eye. 8. A capsule of gelatin or similar substance containing some liquid for medicinal application, as ether. 9. A size of type, between agate and diamond. This line is printed in the type called pearl. Ground pearl. <zoology> A crystallized variety of dolomite, having a pearly luster. Pearl white. Basic bismuth nitrate, or bismuth subchloride; used chiefly as a cosmetic. A variety of white lead blued with indigo or Berlin blue. Origin: OE. Perle, F. Perle, LL. Perla, perula, probably fr. (assumed) L. Pirulo, dim. Of L. Pirum a pear. See Pear, and cf. Purl to mantle. (19 Mar 1998) |
| pearl cyst | <ophthalmology> A mass of epithelial cells introduced into the interior of the eye by a perforating injury. (21 Jun 2000) |
| pearl moss | Synonym: cartilage. 2. The plant Chondrus crispus, Fucus crispus, or Gigartina mamillosa (family Gigartinaceae); a demulcent in chronic and intestinal disorders. Synonym: carrageen, carragheen, Irish moss, pearl moss. Origin: G. Chondros, gristle (05 Mar 2000) |
| pearl necklace gallbladder | <radiology> Associated with the generalised form of adenomyomatosis findings: tiny extraluminal extension of contrast on oral cholecystogram, enhanced after contraction (12 Dec 1998) |
| pearl tumour | An obsolete term for cholesteatoma. (05 Mar 2000) |