EXAMPLES | WORD ORIGIN adjective developed from more than one ancestral type, as a group of animals. Origin of polyphyletic
First recorded in
phyletic Related forms pol·y·phy·let·i·cal·ly, adverb
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for polyphyletic Historical Examples of polyphyletic British Dictionary definitions for polyphyletic adjective biology relating to or characterized by descent from more than one ancestral group of animals or plants Derived Forms polyphyletically, adverb Word Origin for polyphyletic
poly- + phyletic
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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polyphyletic [pŏl′ē-fī-lĕt ′ĭk] adj. Descended or derived from more than one ancestral stock or source. Of or being the theory that blood cells are derived from several different stem cells, depending on the particular blood cell type. Related forms pol′y•phy ( ′le•tism -fī) ′lĭ-tĭz′əm n.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Relating to a taxonomic group that does not include the common ancestor of the members of the group and whose members have two or more separate origins. A group that consists of flying vertebrates would be polyphyletic, as bats and birds independently evolved flight and do not share a common ancestor. Compare monophyletic paraphyletic.
The American Heritage® Science Dictionary
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