The Collaborative International Dictionary of English v.0.48:

Dichotomize \Di*chot"o*mize\, v. t. [imp. & p. p.
   Dichotomized; p. pr. & vb. n. Dichotomizing.] [See
   Dichotomous.]
   1. To cut into two parts; to part into two divisions; to
      divide into pairs; to bisect. [R.]
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            The apostolical benediction dichotomizes all good
            things into grace and peace.          --Bp. Hall.
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   2. (Astron.) To exhibit as a half disk. See Dichotomy, 3.
      "[The moon] was dichotomized." --Whewell.
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