n.
Pronunciation: ' ā -z ē - ə - ˌ tr ō p
Function: noun
Etymology: 2 a- + zeo- (fr. Greek zein to boil) + -trope something changed, from Greek tropos turn ― more at YEAST , TROPE
Date: 1938
: a liquid mixture that is characterized by a constant minimum or maximum boiling point which is lower or higher than that of any of the components