| 单词 | convex |
|---|---|
| 音标 | [kɔn'veks] |
| 解释 | a.凸出的 |
| 红宝书 | 【英】 adj. 凸出的 (curving outward) 【记】 参考：concave(凹入) ，比较：vex(使…苦 恼) |
| 字源 | 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. |
| 不择手段背单词 | n. /adj. 凸出的(如球体的外表面) 【参】concave(v /n 凹); vex(vt 使烦恼; 恼怒) 【反】dent(n 凹; 凹痕) |
| 趣味全助记 | 【记】vex是达到vertex顶点时的路径，从凸面走到顶点；curv + ex 向外弯的curv 【相关】apex顶点，axis轴，climax顶点 |
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