| pellegrini-steatum ossification | <radiology> Ossification of the medial collateral ligament, usually due to trauma with subsequent haemorrhage (no eponym for ossification of the lateral collateral ligament!) (12 Dec 1998) |
|---|---|
| Pellegrini-Stieda disease | A calcific density in the medial collateral ligament and/or bony growth at the internal condyle of the femur. Synonym: Pellegrini-Stieda disease. (05 Mar 2000) |
| pellet | 1. A pilule, or very small pill. 2. A small rod-shaped or ovoid dosage form that is sterile and is composed essentially of pure steroid hormones in compressed form, intended for subcutaneous implantation in body tissues; serves as a depot providing for the slow release of the hormone over an extended period of time. Origin: Fr. Pelote; L. Pila, a ball (05 Mar 2000) |
| pellet implantation | Intramuscular or subcutaneous insertion of an active therapeutic agent in pellet form to provide protracted absorption at a rate slower than subcutaneous or intramuscular injection and as a means of providing a sustained therapeutic effect without repeated administration. (05 Mar 2000) |
| 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) |
| 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) |