<p><strong>adjective</strong></p><ul><li>serving or tending to disjoin; separating; dividing; distinguishing.</li><li>Grammar. syntactically setting two or more expressions in opposition to each other, as but in "poor but happy," or expressing an alternative, as or in "this or that."</li><li>not syntactically dependent upon some particular expression.</li><li>Logic. characterizing propositions that are disjunctions.</li><li>(of a syllogism) containing at least one disjunctive proposition as a premise.</li></ul><p><strong>noun</strong></p><ul><li>a statement, course of action, etc., involving alternatives.</li><li>Logic. disjunction.</li><li>Grammar. a disjunctive word.</li></ul>