Meanings
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1
adj
in logic and semantics, relating to or determined by intension: the meaning, properties, or conditions associated with an expression rather than the objects it denotes
An intensional definition of triangle gives the properties that every triangle must have.
Thesaurus
Etymology
Formed from intension + -al. Intension comes from Latin intensio ("stretching, strain, intensity") and acquired a logical sense for the internal content or attributes of a concept. Intensional is therefore the traditional opposite of extensional.