Link Centre Dictionary

plumb line

plumb·line

uncommon

noun

1.

a cord from which a metal weight is suspended pointing directly to the earth''s center of gravity; used to determine the vertical from a given point

Origin

From plumb line (noun).

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WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.