| phyllous | <botany> Homologous with a leaf; as, the sepals, petals, stamens, and pistils are phyllous organs. Source: Websters Dictionary (01 Mar 1998) |
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| phylloxanthin | <botany> A yellow colouring matter extracted from chlorophyll. Origin: Phyllo- + Gr. Yellow. Source: Websters Dictionary (01 Mar 1998) |
| phylloxera | 1. <zoology> A small hemipterous insect (Phylloxera vastatrix) allied to the aphids. It attacks the roots and leaves of the grapevine, doing great damage, especially in Europe. It exists in several forms, some of which are winged, other wingless. One form produces galls on the leaves and twigs, another affects the roots, causing galls or swellings, and often killing the vine. 2. The diseased condition of a vine caused by the insect just described. Origin: NL, fr. Gr. Leaf + dry. Source: Websters Dictionary (01 Mar 1998) |
| phylo- | Tribe, race; a taxonomic phylum. Origin: G. Phylon, tribe (05 Mar 2000) |
| phyloanalysis | 1. The study of bioracial origins. 2. A rarely used term for a method of investigating individual and collective behavioural disorders putatively arising from impaired tensional processes. Origin: phylo-+ analysis (05 Mar 2000) |
| phylogenesis | Synonym: phylogeny. Origin: phylo-+ G. Genesis, origin (05 Mar 2000) |
| phylogenetic | Relating to phylogenesis, or the race history of a type of organism. (07 May 1998) |
| phylogeny | <biology> The evolutionary history of a particular taxonomic group, usually aspecies. (09 Oct 1997) |
| phylon | <biology> A tribe. Origin: NL, fr. Gr. Race, tribe. (07 May 1998) |
| phylum | <biology> The second highest taxonomic classification for the kingdom Animalia (animals), between kingdom level and class level. (07 May 1998) |
| phyma | <medicine> A tubercle on any external part of the body. Origin: NL, fr. Gr, fr. To produce. (07 May 1998) |
| phymatoid | Resembling a neoplasm. Origin: G. Phyma, a tumour, + eidos, resemblance (05 Mar 2000) |
| phymatorrhysin | A variety of melanin obtained from certain melanotic neoplasms, and from hair and other heavily pigmented parts. Origin: G. Phyma (phymat-), tumour, + rhysis, a flowing (05 Mar 2000) |
| phymatosis | The growth or the presence of phymas or small nodules in the skin. (05 Mar 2000) |
| physa | <zoology> A genus of fresh water Pulmonifera, having reversed spiral shells. See Pond snail, under Pond. Origin: NL, fr. Gr. A bellows. Source: Websters Dictionary (01 Mar 1998) |