(logic) The division of a class into two disjoint subclasses that are together comprehensive, as the division of man into white and not white.
(biology) The division of a genus into two species; a division into two subordinate parts.
(astronomy) A phase of the moon when it appears half lit and half dark, as at the quadratures.
(biology) 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 dominant perceptions of the Other in racializing discourse attest to a major Us-Them dichotomization.”
“Boinet finds in these cases of hereditary hexadactylism that the supernumerary members are not remnants of preexisting digits, but that they are the result of a dichotomization of the bones.”
“We accept the schizophrenia, the dichotomization of human possibility.”