convex: [16] Convex was borrowed from Latin convexus, mainly an architectural term meaning ‘arched, vaulted’. The element -vexus probably came from vehere ‘carry’ (source of English vehicle), the notion being that vaults are ‘carried together’ (Latin com- ‘together’) to meet at a point at the centre of a roof, although some have speculated that it is related to Latin vārus ‘bent, knock-kneed’ (source of English prevaricate). => vehicle, vex
convex (adj.)
1570s, from Middle French convexe, from Latin convexus "vaulted, arched," past participle of convehere "to bring together," from com- "together," or "thoroughly" (see com-) + vehere "to bring" (see vehicle). Possibly from the idea of vaults carried together to meet at the point of a roof. Related: Convexity. Convex lens is from 1822.
雙語例句
1. I wouldn't say your stomach was big — it's just slightly convex.
我不會說你的肚子大——它隻是有點凸出.
來自《簡明英漢詞典》
2. Its convex border should project far into the right lower lung field.
其凸出緣應深深地突入右下肺野內.
來自辭典例句
3. A convex lens is used to concentrate rays of light.
凸透鏡用於聚集光線.
來自辭典例句
4. Alternative characterization of concave and convex functions which is sometimes useful.
對於凹函數和凸函數還有一個替補的表征,有時它是有用的.
來自辭典例句
5. In adults its contour may be straight, slightly concave or slightly convex.