共きょう沸ふつ

noun

azeotrope

Technical term in chemistry for a mixture that boils at a constant temperature and retains its composition in the vapor phase.

• エタノールと水みずは共きょう沸ふつ混こん合ごう物ぶつを形けい成せいする。

  Ethanol and water form an azeotropic mixture.