| pellibranchiata | <zoology> A division of Nudibranchiata, in which the mantle itself serves as a gill. Origin: NL, fr. Pellis garment + branchia a gill. Source: Websters Dictionary (01 Mar 1998) |
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| pellicle | <microbiology> The outer covering of a protozoan: the plasma membrane plus underlying reinforcing structures, for example the membrane bounded spaces (alveoli) just below the plasma membrane in ciliates. (18 Nov 1997) |
| pellicular | Relating to a pellicle. (05 Mar 2000) |
| pelliculous | Relating to a pellicle. (05 Mar 2000) |
| pellile | <zoology> The redshank; so called from its note. Source: Websters Dictionary (01 Mar 1998) |
| pellitory | <botany> The common name of the several species of the genus Parietaria, low, harmless weeds of the Nettle family; also called wall pellitory, and lichwort. Parietaria officinalis is common on old walls in Europe; P.Pennsylvanica is found in the United States; and six or seven more species are found near the Mediterranean, or in the Orient. Origin: OE. Paritorie, OF. Paritoire, F. Parietaire; (cf. It. & Sp. Parietaria), L. Parietaria the parietary, or pellitory, the wall plant, fr. Parietarus belonging to the walls, fr. Paries, parietis a wall. Cf. Parietary. <botany> A composite plant (Anacyclus Pyrethrum) of the Mediterranean region, having finely divided leaves and whitish flowers. The root is the officinal pellitory, and is used as an irritant and sialogogue. Called also bertram, and pellitory of Spain. The feverfew (Chrysanthemum Parthenium); so called because it resembles the above. Origin: Sp. Pelitre, fr. L. Pyrethrum. See Bertram. Source: Websters Dictionary (01 Mar 1998) |
| Pellizzari, Pietro | <person> Italian dermatologist, 1823-1892. See: Jadassohn-Pellizzari anetoderma. (05 Mar 2000) |
| Pellizzi's syndrome | macrogenitosomia praecox |
| Pellizzi, G | <person> 19th-20th century Italian physician. See: Pellizzi's syndrome. (05 Mar 2000) |
| pellote | Synonym: peyote. Origin: Aztec, peyotl (05 Mar 2000) |
| pellucid | Transparent. (09 Oct 1997) |
| pellucid zone | <cell biology, gynaecology> A translucent, elastic, noncellular layer surrounding the ovum of many mammals. (11 May 1997) |