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Medical Definition of Polyphyletic theory
1. In haematology, the theory that blood cells are derived from several different stem cells, depending on the particular cell type. Synonym: polyphyletic theory. Origin: poly-+ G. Phyle, tribe (05 Mar 2000)
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1. In haematology, the theory that blood cells are derived from several different stem cells, depending on the particular cell type. Synonym: polyphyletic theory. Origin: poly-+ G. Phyle, tribe (05 Mar 2000)