| polysplenia syndrome | A syndrome in which normally unpaired organs develop more symmetrically in mirror image; two spleens, one on each side, are usually present, and cardiovascular anomalies are common. Synonym: polysplenia syndrome. (05 Mar 2000) |
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| polysporous | <botany> Containing many spores. Origin: Poly- + spore. Source: Websters Dictionary (01 Mar 1998) |
| polysteraxic | Denoting behaviour characterised by its socially provocative quality. (05 Mar 2000) |
| polystichia | Arrangement of the eyelashes in two or more rows. Origin: poly-+ G. Stichos, row (05 Mar 2000) |
| polystomata | <zoology> A division of trematode worms having more two suckers. Synonym: Polystomea and Polystoma. Origin: NL, from Gr. Many +, mouth. Source: Websters Dictionary (01 Mar 1998) |
| polystome | <zoology> Having many mouths. Origin: Gr. Many-mouthed; + mouth. <zoology> An animal having many mouths; applied to Protozoa. Source: Websters Dictionary (01 Mar 1998) |
| polystyrenes | Ethenyl-benzene homopolymer. Polymerised styrene; a clear, hard plastic used as biocompatible material, especially in dentistry; in industry as insulator, for injection molding and casting; as sheets, plates, rods, rigid forms and beads; also copolymerised with other materials, including elastomers. Synonym: dylene; polystyrene rubber; polystyrol; polyvinylbenzene; styrofoam; trycyte. (12 Dec 1998) |
| polysulfide reductase | <enzyme> From wollinella succinogenes; enzyme is a component of the phosphorylative electon transport system with polysulfide as the terminal acceptor; polysulfide is formed chemically from elemental sulfur and sulfide which is produced by the growing bacteria Registry number: EC 1.8.99.- Synonym: sulfur reductase (26 Jun 1999) |
| polysulfide rubber | Synthetic rubber used as a dental impression material. (05 Mar 2000) |
| polysulphide | <chemistry> A sulphide having more than one atom of sulphur in the molecule; contrasted with monosulphide. Origin: Poly- + sulphide. Source: Websters Dictionary (01 Mar 1998) |
| polysulphuret | <chemistry> A polysulphide. Source: Websters Dictionary (01 Mar 1998) |
| polysuspensoid | A colloid system of solid phases having different degrees of dispersion. (05 Mar 2000) |
| polysymbrachydactyly | Malformation of the hand or foot in which the shortened digits are syndactylous and polydactylous. Origin: poly-+ symbrachydactyly (05 Mar 2000) |
| polysynaptic | Referring to neural pathways formed by a chain of a large number of synaptically connected nerve cells, as distinguished from oligosynaptic conduction systems. Synonym: multisynaptic. (05 Mar 2000) |
| polysyndactyly | Syndactyly of several fingers or toes. There are several forms: a simple one and one with skull defects. There is also a recessive kind associated with cardiac defects . (05 Mar 2000) |