hydrate
verb (specialist)- hydrate something/somebody
to make something/somebody take in and hold water 使水合;使吸入水分;使成水合物;使水化 a lotion that protects and hydrates your skin 保护和滋润皮肤的乳液 It is important for people to stay hydrated in the hot weather. 在炎热的天气里,人们保持水分是很重要的。
Word Originearly 19th cent.: coined in French from Greek hudōr ‘water’.