perpendicle
名词 n.
英文释义
名词 n.
-
Something that hangs down, especially straight down, such as a plumb line.
— For quotations using this term, see Citations:perpendicle.
词形变化
词源
From Middle English perpendicle, from Latin perpendiculum, from per + pendere (“to hang”). Compare French perpendicule.
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数据来源: Wiktionary