(1) (使)蒸发，挥发，使脱水(cause sth to change into steam; remove liquid from a substance)[I，T+n]：Alcohol～s quickly. 酒精挥发得很快。～the sea to form clouds 海水蒸发形成云层;～water into steam 水蒸发为蒸汽; E～d milk is thick because the water in it has been～d from it. 淡炼乳很稠，因为水分已被脱去。If sea water is～d，a residue of salt will remain. 如果将海水蒸发，盐便会残留下来。〖同〗vaporize，dehydrate;〖反〗condense，concentrate，reconstitute，reconstruct;

(2)(使)消失(vanish;disappear) [I] (fig)：His enthusiasm/chance of getting into university/confidence/hopes～d. 他的热情/上大学的机会/信心/希望丧失了。When the fight was over the crowd～d. 争斗结束之后，人群散开了。〖同〗 disappear，vanish，scatter; 〖反〗 appear，emerge，gather，collect;

→e′vaporable adj 可蒸发的;e͵vapo′ration n 蒸发; e′vaporative adj (使)蒸发的;e′vaporator n 蒸发者(器);

【辨异】evaporate与dehydrate和dry的区别见DRY。