DEHYDRATE Meaning of DEHYDRATE in English v. 25B6; verbalcohol dehydrates the skin : DRY (OUT), desiccate, dehumidify, effloresce. frogs can dehydrate quickly : DRY UP/OUT, lose water. hydrate. Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012