Heterology definition

Heterology





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2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Heterology \Het`er*ol"o*gy\, n. [Hetero- + -logy.]
     1. (Biol.) The absence of correspondence, or relation, in
        type of structure; lack of analogy between parts, owing to
        their being composed of different elements, or of like
        elements in different proportions; variation in structure
        from the normal form; -- opposed to homology.


        [1913 Webster]
  
     2. (Chem.) The connection or relation of bodies which have
        partial identity of composition, but different
        characteristics and properties; the relation existing
        between derivatives of the same substance, or of the
        analogous members of different series; as, ethane, ethyl
        alcohol, acetic aldehyde, and acetic acid are in
        heterology with each other, though each in at the same
        time a member of a distinct homologous series. Cf.
        {Homology}.
        [1913 Webster]

From WordNet (r) 2.0 [wn]:

  heterology
       n : (biology) the lack of correspondence of apparently similar
           body parts

















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