pure/pjUr; pjʊə/adj 1 not mixed with anything else [ impure ] 纯的﹐纯净的: pure gold 纯金pure cotton/wool/silk etc pure wool blankets 纯羊毛毯 see box at 见 NATURAL1 方框2 complete and total [ sheer ] 完全的﹐纯粹的: We met by pure chance . 我们相遇纯属偶然。a smile of pure joy 由衷的微笑3 clean and not containing anything harmful or unhealthy 洁净的﹐纯净的: pure drinking water 洁净的饮用水In the mountains, the air is pure . 在山里﹐空气很纯净。4 literary without any sexual experience or evil thoughts【文】纯洁的﹐贞洁的﹔无邪的: a pure young girl 纯洁的少女5 [only before noun 仅用于名词前] work in science etc that increases our knowledge of the subject rather than using it for practical purposes [→ applied] 纯理论的﹐非应用的: pure mathematics 纯数学