azeotrope noun 1verb 1forms 3 noun1 •A mixture of two or more substances whose liquid and gaseous forms have the same composition (at a certain pressure); the substances cannot be separated by normal distillation.When a ternary azeotrope does exist, the curves intersect at the same point. The presence of a unitary azeotrope curve is not a prerequisite for the generation of a ternary azeotrope. — 1999 verb1 •To create a mixture of this kind. formsazeotroped · azeotroping · azeotropes