American Heritage Dictionary
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Century Dictionary
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GNU Webster's 1913
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WordNet
Elsewhere on the web
For those who insist that there are no "weaknesses" in the traditional case for universal common ancestry, let me cite a few examples: (1) The fossil record shows a pattern of explosions of new life-forms that contradicts the predictions and expectations of universal common descent and suggests the possibility of a discontinuous (polyphyletic) view of the history of life, rather than a continuous (monophyletic) view of the history of life.— Evolution News & Views
All true marine plants are polyphyletic origin (evolved separately in different places in the phylogenetic tree)— Citizendium, the Citizens' Compendium - Recent changes [en]
Weighing these paleo-biogeographic challenges, Clack (2002, 99) considers the possibility of polyphyletic tetrapod origins, but then dismisses that hypothesis as less likely than the monophyletic scenario:— Evolution News & Views
Possible polyphyletic scenarios were methodologically and philosophically excluded as implausible.— Evolution News & Views
Carl Woese, as advocates of the polyphyletic view, without informing the reader about the different number of separate origins postulated by their respective theories.— Evolution News & Views

Century Dictionary (1)
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