(ˈ)dī|käd.əməs, -ätə- sometimes də̇ˈk- adjective
Etymology: Late Latin dichotomos, from Greek, from dich- + -tomos (from temnein to cut) — more at tome
1. : dividing into two parts or groups : readily susceptible to dichotomy : readily dividing into pairs successively : showing a dual arrangement
2. : relating to, involving, or proceeding from dichotomy
a dichotomous division
• di·chot·o·mous·ly adverb