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
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
If there is a dichotomy between two things, there is a very great difference or opposition between them. There is a dichotomy between the academic world and the industrial world. dichotomies the difference between two things or ideas that are completely opposite dichotomy between
In astronomy, a configuration of three bodies so that they form a right triangle; specifically, such a configuration in the solar system with the sun at the apex of the 90° angle
A twofold division or distinction, especially one between mutually exclusive things While a trichotomy cuts things in threes, a dichotomy cuts them in two