thin and weak, usually because of illness or lack of food （常指因疾病或缺少食物而）消瘦的，憔悴的，瘦弱的 He was thirty, but looked fifty, with pale skin, hopeless eyes and an emaciated body, covered in sores. 他三十岁，但看上去五十岁，皮肤苍白，眼睛无望，身体瘦弱，浑身疮。
Oxford Collocations Dictionaryverbs- be
- look
- become
- …
- severely
Word Originearly 17th cent.: from Latin emaciat- ‘made thin’, from the verb emaciare, from e- (variant of ex-, expressing a change of state) + macies ‘leanness’.