dichotomy

dichotomy is defined in Webster's Unabridged Dictionary (1913) with 5 senses. The full text of each entry is reproduced verbatim below.

Definitions

  1. 1.Division or distribution of genera into two species; division into two subordinate parts.
  2. 2.(Astron.) That phase of the moon in which it appears bisected, or shows only half its disk, as at the quadratures.
  3. 3.(Biol.) Successive division and subdivision, as of a stem of a plant or a vein of the body, into two parts as it proceeds from its origin; successive bifurcation.
  4. 4.The place where a stem or vein is forked.
  5. 5.(Logic) Division into two; especially, the division of a class into two subclasses opposed to each other by contradiction, as the division of the term man into white and not white.

Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

Related questions

Reverse-dictionary questions

Definition-first questions whose answer is dichotomy.

Sources