- Dichotomy Di*chot"o*my, n. [Gr. ?, fr. ?: cf. F. dichotomie.
1. A cutting in two; a division.
A general breach or dichotomy with their church. --Sir T. Browne. [1913 Webster]
3. (Astron.) That phase of the moon in which it appears bisected, or shows only half its disk, as at the quadratures. [1913 Webster]
5. The place where a stem or vein is forked. [1913 Webster]
The Collaborative International Dictionary of English. 2000.