dichotomise

Verb

dichotomize (third-person singular simple present dichotomizes, present participle dichotomizing, simple past and past participle dichotomized)

1. (transitive) To separate into two parts, to classify into two classes, or to categorize into two categories.
   • The apostolical benediction dichotomizes all good things into grace and peace.1623 December 26, Joseph Hall, “Sermon XI: The Glory of the Latter House”, in The Works of Joseph Hall, D.D., volume 5, Oxford: D. A. Talboys, published 1837, page 165

   Synonyms:

   binarize

2. (intransitive) To be divided into two.

   Synonyms:

   bisect, halve

3. To exhibit as a half disk.
   • If the moon was a perfectly smooth sphere […] the place when she was dichotomized, […] would depend upon the sun's distance from the earth.1837, Rev. William Whewell, History of the Inductive Sciences from the Earliest to the Present Time, volume 1, pages 155–156