polyphyletic — 1. Derived from more than one source, or having several lines of descent, in contrast to monophyletic. 2. In hematology, relating to polyphyletism. * * * poly·phy·let·ic .päl i (.)fī let ik adj of or relating to more than one stock specif derived … Medical dictionary
polyphyletic — adj. [Gr. polys, many; phyle, tribe] 1. Of mixed evolutionary origin, not derived from a common ancestor. 2. Pertaining to a group whose most recent common ancestor is not cladistically a member of that group. 3. Pleophyletic … Dictionary of invertebrate zoology
polyphyletic — [ˌpɒlɪfʌɪ lɛtɪk] adjective Biology (of a group of organisms) derived from more than one common evolutionary ancestor or ancestral group … English new terms dictionary
polyphyletic — adjective Etymology: International Scientific Vocabulary, from Greek polyphylos of many tribes, from poly + phylē tribe more at phyl Date: 1875 of, relating to, or derived from different ancestral stocks; specifically relating to or being a… … New Collegiate Dictionary
polyphyletic — polyphyletically, adv. /pol ee fuy let ik/, adj. developed from more than one ancestral type, as a group of animals. [1870 75; POLY + PHYLETIC] * * * … Universalium
polyphyletic — Artifical group comprising members that have originated independently from more than one ancestor. Cf. monophyletic, paraphyletic … Expanded glossary of Cycad terms
polyphyletic — adj. describing a number of individuals, species, etc., that have evolved from more than one ancestral group. Compare: monophyletic … The new mediacal dictionary
polyphyletic — /ˌpɒlifaɪˈlɛtɪk/ (say .poleefuy letik) adjective developed from more than one ancestral type, as a group of animals. {poly 1 + Greek phyletikos of the same tribe} –polyphyly, noun …
Polyphyly — In phylogenetics, a taxon is polyphyletic (Greek for of many races ) if the trait its members have in common evolved separately in different places in the phylogenetic tree. Equivalently, a polyphyletic taxon does not contain the most recent… … Wikipedia
Tanager — Taxobox name = Tanagers image width = 240px image caption = Grass green Tanager, Chlorornis riefferii regnum = Animalia phylum = Chordata classis = Aves ordo = Passeriformes subordo = Passeri familia = Thraupidae familia authority = subdivision… … Wikipedia
Cladistics — For the scientific journal, see Cladistics (journal). Part of a series on Evolutionary Biology … Wikipedia