1660s, "action of detaching," from French détachement (17c.), from détacher (see detach). Meaning "portion of a military force" is from 1670s; that of "aloofness from objects or circumstances" is from 1798.
例文
1. One detachment pushed into the eastern suburbs towards the airfield.
小さな分隊が東部郊外に進出して空港に向かった。
2.Ridley viewed his work with a cynical detachment .
リドリーは、彼の作品を重箱の隅をつつくような超然とした態度で見ている。
3.He answered with an air of detachment .
彼は冷たい表情で答えた。
4.The detachment of cables from the computer will take an hour.
コンピュータからケーブルを取り外すのに1時間かかる。
5.The detachment made a rapid march of 100 li in one night.