Etymology
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evaporation (n.)

late 14c., from Old French évaporation and directly from Latin evaporationem (nominative evaporatio), noun of action from past participle stem of evaporare "disperse in vapor or steam," from assimilated form of ex "out, out of" (see ex-) + vapor "steam" (see vapor).

updated on December 21, 2016

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Definitions of evaporation from WordNet

evaporation (n.)
the process of becoming a vapor;
Synonyms: vaporization / vaporisation / vapor / vapour
evaporation (n.)
the process of extracting moisture;
Synonyms: dehydration / desiccation / drying up
From wordnet.princeton.edu, not affiliated with etymonline.