Hybridizing

from WordNet (r) 3.0 (2006)

hybridizing
    n 1: (genetics) the act of mixing different species or varieties
         of animals or plants and thus to produce hybrids [syn:
         {hybridization}, {hybridisation}, {crossbreeding},
         {crossing}, {cross}, {interbreeding}, {hybridizing}]

from The Collaborative International Dictionary of English v.0.48

Hybridize \Hy"brid*i`ze\, v. t. [imp. & p. p. {Hybridized}; p.
   pr. & vb. n. {Hybridizing}.]
   To render hybrid; to produce by mixture of stocks.
   [1913 Webster]

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