| plumb line n. 1. A line from which a weight is suspended to determine verticality or depth. 2. A line regarded as directed exactly toward the earth's center of gravity. |
plumb line
Noun
a string with a metal weight at one end, used to test the depth of water or to test whether something is vertical
plumb line (pl m) A line regarded as directed exactly toward the Earth's center of gravity. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  plumb line - 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 pointcord - a line made of twisted fibers or threads; "the bundle was tied with a cord" lead line, sounding line - (nautical) plumb line for determining depth plumb rule - a plumb line attached to a narrow board |
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