Definition of polyphyletic in English:

polyphyletic

Syllabification: pol·y·phy·let·ic
Pronunciation: /ˌpälifīˈletik
 
/

adjective

Biology
  • (Of a group of organisms) derived from more than one common evolutionary ancestor or ancestral group and therefore not suitable for placing in the same taxon.
    More example sentences
    • The present study, as well as previous molecular studies, suggest that the oegopsid squids represent a polyphyletic group with uncertain phylogenetic affinities.
    • Loriciferans were originally assigned to the paraphyletic or polyphyletic group called Aschelminthes.
    • The taxonomy of the group is not well resolved, with many family-group taxa considered paraphyletic or polyphyletic, and several subfamilies are unplaced at the family level.

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Pronunciation: skəʊʃ
noun
a small amount; a little