Pinpoint
来自Big Physics
Safin（讨论 | 贡献）2022年4月27日 (三) 10:51的版本 （建立内容为“Category:etymology == wiktionary == [https://en.wiktionary.org/wiki/pinpoint ref] From pin + point. == etymonline == [https://www.etymonline.com/word…”的新页面）
wiktionary
From pin + point.
etymonline
pinpoint (n.)
also pin-point, 1849, "the point of a pin," from pin (n.) + point (n.). Taken into aeronautics in a sense of "place identified from the air" (used to ascertain the position of the aircraft); hence the verb meaning "locate precisely" (1917), which originally was aviators' slang. Related: Pinpointed; pinpointing. As an adjective, "performed with precisional accuracy," 1944, originally of aerial bombing.
