| pleiotropy | The ability of a single allele to have more than one distinguishable effect. Themost familiar example is the allele responsible for colour pattern inSiamese cats. (09 Oct 1997) |
|---|---|
| pleistocene | <geology> Of or pertaining to the epoch, or the deposits, following the Tertiary, and immediately preceding man. The Pleistocene epoch, or deposits. Origin: Gr. Most + new. Source: Websters Dictionary (01 Mar 1998) |
| Pleistophora | A genus of microsporidians in the protozoan phylum Microspora, commonly found in fish and insects, with mononucleate, thick-walled spores in clusters of more than eight. An undescribed but distinct species of Pleistophora was implicated as the cause of a disseminated microsporidial myositis in an immunocompromised male patient. (05 Mar 2000) |
| plenary | Full; entire; complete; absolute; as, a plenary license; plenary authority. "A treatise on a subject should be plenary or full." (I. Watts) Plenary indulgence See Inspiration. Origin: LL. Plenarius, fr. L. Plenus full. See Plenty. Source: Websters Dictionary (01 Mar 1998) |
| plenicorn | <zoology> A ruminant having solid horns or antlers, as the deer. Origin: L. Plenus full + cornu horn. Source: Websters Dictionary (01 Mar 1998) |
| plenteous | 1. Containing plenty; abundant; copious; plentiful; sufficient for every purpose; as, a plenteous supply. "Reaping plenteous crop." 2. Yielding abundance; productive; fruitful. "The seven plenteous years." 3. Having plenty; abounding; rich. "The Lord shall make thee plenteous in goods." (Deut. Xxviii. 11) Synonym: Plentiful, copious, full. See Ample. Plenteously, Plenteousness. Origin: From Plenty. Source: Websters Dictionary (01 Mar 1998) |
| plentiful | 1. Containing plenty; copious; abundant; ample; as, a plentiful harvest; a plentiful supply of water. 2. Yielding abundance; prolific; fruitful. "If it be a long winter, it is commonly a more plentiful year." (Bacon) 3. Lavish; profuse; prodigal. "He that is plentiful in expenses will hardly be preserved from" (Bacon) Plen"tifully, Plen"tifulness. Source: Websters Dictionary (01 Mar 1998) |
| pleo- | More. Origin: G. Pleion (05 Mar 2000) |
| pleochroic | Synonym: pleochromatic. Origin: pleo-+ G. Chroa, colour (05 Mar 2000) |
| pleochroism | <microscopy> The phenomenon of a substance showing different absorption colours in different vibration directions of polarized light. The observed colours change with the orientation of the crystal and can be seen only with plane polarized light, i.e., a single polar. (05 Aug 1998) |
| pleochromatic | Pleochroic. Source: Websters Dictionary (01 Mar 1998) |
| pleochromatism | <microscopy> The phenomenon of a substance showing different absorption colours in different vibration directions of polarized light. The observed colours change with the orientation of the crystal and can be seen only with plane polarized light, i.e., a single polar. (05 Aug 1998) |
| pleocytosis | Presence of more cells than normal, often denoting leukocytosis and especially lymphocytosis or round cell infiltration; orginally applied to the lymphocytosis of the cerebrospinal fluid present in syphilis of the central nervous system. Origin: pleo-+ G. Kytos, cell, + -osis, condition (05 Mar 2000) |
| pleomastia | Pleomazia Synonym: polymastia. Origin: pleo-+ G. Mastos, breast (05 Mar 2000) |
| pleomorphic | Pertaining to pleomorphism; as, the pleomorphic character of bacteria. Source: Websters Dictionary (01 Mar 1998) |