- [uncountable]
drops of water that form on a cold surface when warm water vapour becomes cool 凝结的水珠 The window was steamed up with condensation. 窗户被水汽凝结了。 Not all roofing problems are caused by leaks; condensation may also be a problem. 并非所有的屋面问题都是由渗漏引起的；冷凝也可能是一个问题。
- [uncountable]
the process of a gas changing to a liquid （气体）冷凝，凝结 - [countable, usually singular, uncountable] (formal)
the process of making a book, etc. shorter by taking out anything that is not necessary （书等的）简缩 The essay should be a readable condensation of the recent scientific literature. 这篇文章应该是最近科学文献的可读浓缩。
Word Originearly 17th cent.: from late Latin condensatio(n-), from condensare ‘press close together’, from condensus ‘very thick’, from con- ‘completely’ + densus ‘dense’.