| pissasphalt | <chemical> Earth pitch; a soft, black bitumen of the consistence of tar, and of a strong smell. It is inflammable, and intermediate between petroleum and asphalt. Alternative forms: pisasphaltum, pisasphalt, etc. Origin: L. Pissasphaltus, Gr.; pitch + asphalt: cf. F. Pissasphalte. Source: Websters Dictionary (01 Mar 1998) |
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| PISSLRE kinase | <enzyme> A cdc2-related protein kinase; contains a pstaire-motive; 38-45% identical with all cyclin-dependent kinases. Registry number: EC 2.7.1.- (26 Jun 1999) |
| pistachio | <botany> The nut of the Pistacia vera, a tree of the order Anacardiaceae, containing a kernel of a pale greenish colour, which has a pleasant taste, resembling that of the almond, and yields an oil of agreeable taste and odour; called also pistachio nut. It is wholesome and nutritive. The tree grows in Arabia, Persia, Syria, and Sicily. Alternative forms: pistachia. Origin: It. Pistacchio (cf. Sp. Pistacho, F. Pistache), fr. L. Pistacium, Gr, fr. Per. Pistah. Cf. Fistinut. Source: Websters Dictionary (01 Mar 1998) |
| pistacia | <botany> The name of a genus of trees, including the tree which bears the pistachio, the Mediterranean mastic tree (Pistacia Lentiscus), and the species (P. Terebinthus) which yields Chian or Cyprus turpentine. Origin: NL. See Pistachio. Source: Websters Dictionary (01 Mar 1998) |
| pistacite | <chemical> Epidote. Origin: Cf. F. Pistacite. So called from its green colour. See Pistachio. Source: Websters Dictionary (01 Mar 1998) |
| pistazite | <chemical> Same as Pistacite. Source: Websters Dictionary (01 Mar 1998) |
| piste | <chemical> The track or tread a horseman makes upon the ground he goes over. Origin: F, fr. L. Pisere, pinsere, pistum, to pound. Source: Websters Dictionary (01 Mar 1998) |
| pistil | The unit of female reproduction of a flower, may be comprised of a single carpel or two or more carpels united. (09 Oct 1997) |
| pistillaceous | <botany> Growing on, or having nature of, the pistil; of or pertaining to a pistil. Source: Websters Dictionary (01 Mar 1998) |
| pistillate | Said of a flower bearing a pistil or pistils but not stamens, may refer also to a plant having only pistillate flowers. (09 Oct 1997) |
| pistillidium | Origin: NL, fr. E. Pistil. <botany> Same as Archegonium. Source: Websters Dictionary (01 Mar 1998) |
| pistilliferous | <botany> Pistillate. Origin: Pistil: cf. F. Pistillifere. Source: Websters Dictionary (01 Mar 1998) |
| pistillode | A sterile pistil, often rudimentary. (09 Oct 1997) |
| pistillody | <botany> The metamorphosis of other organs into pistils. Origin: Pistil + Gr. Form. Source: Websters Dictionary (01 Mar 1998) |
| pistol | The smallest firearm used, intended to be fired from one hand, now of many patterns, and bearing a great variety of names. Pistol carbine, a firearm with a removable but-piece, and thus capable of being used either as a pistol or a carbine. <chemistry> Pistol pipe, a pipe in which the blast for a furnace is heated, resembling a pistol in form. Pistol shot. The discharge of a pistol. The distance to which a pistol can propel a ball. Origin: F. Pistole, pistolet, It. Pistola; prob. From a form Pistola, for Pistoja, a town in Italy where pistols were first made. Cf. Pistole. Source: Websters Dictionary (01 Mar 1998) |