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Definition of “plumb line” - English Dictionary

"plumb line" in British English

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plumb linenoun [C]

uk   /ˈplʌm ˌlaɪn/ us   /ˈplʌm ˌlaɪn/
a piece of string with a weight attached to one end, used either to test if something vertical, such as a wall, is exactly straight, or to find the depth of water
(Definition of plumb line from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
Translations of “plumb line”
in Chinese (Simplified) (测垂直面或水深的)铅垂线,重锤线…
in Chinese (Traditional) (測垂直面或水深的)鉛垂線,錘線…
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