Such a division involving apparently incompatible or opposite principles; a duality.
The division of a genus into two species; a division into two subordinate parts.
A phase of the moon when it appears half lit and half dark, as at the quadratures.
A separation or division into two; a distinction that results in such a division.
The division of a class into two disjoint subclasses that are together comprehensive, as the division of man into white and not white.
Division and subdivision; bifurcation, as of a stem of a plant or a vein of the body into two parts as it proceeds from its origin; often successive.
The state of being disjoined, contrasting, or opposing.
A logical operator that results in “true” when some of its operands are true.
The proposition resulting from the combination of two or more propositions using the or operator.
The act of disjoining; disunion, separation.
During meiosis, the separation of chromosomes (homologous in meiosis I, and sister chromatids in meiosis II).