arc是什么意思（arc的用法）

大家好，知识小编来为大家讲解下。arc是什么意思，arc的用法很多人还不知道，现在让我们一起来看看吧！

一、arc是什么意思

1、arc 弧

2、来自PIE *arku, 弯，拱。

二、arc的用法

1、arc

2、arc: see arch

3、arc (n.)

4、late 14c., originally in reference to the sun's apparent motion in the sky, from Old French arc "bow, arch, vault" (12c.), from Latin arcus "a bow, arch," from PIE root *arku- "bowed, curved" (cognates: Gothic arhvazna "arrow," Old English earh, Old Norse ör; also, via notion of "supple, flexible," Greek arkeuthos, Latvian ercis "juniper," Russian rakita, Czech rokyta, Serbo-Croatian rakita "brittle willow"). Electrical sense is from 1821.

5、arc (v.)

6、1893, in the electrical sense, from arc (n.). Meaning "to move in an arc" attested by 1954. Related: Arced; arcing.

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