(n.) A cutting in two; a division.
(n.) Division or distribution of genera into two species;
division into two subordinate parts.
(n.) That phase of the moon in which it appears bisected, or
shows only half its disk, as at the quadratures.
(n.) 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.
(n.) The place where a stem or vein is forked.
(n.) 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.
