Di-chŏt'/o-mīze1, v. t.
(dī-kŏt'/o-miz), v. t. [See infra.] 1. To cut into two parts; to divide into pairs; to halve; to bisect. [Rare.]
Sense 2. (Astron.) To exhibit as a half-disk or semicircle.
[[The moon] was dichotomized.] Whewell.