单词 | plumb rule |
释义 | plumb ruleSEE SYNONYMS FOR plumb rule ON THESAURUS.COM nouna device for determining perpendicularity, consisting of a narrow board with a plumb line and bob suspended from an upper edge. Origin of plumb rule1350–1400; Middle English plomreule Words nearby plumb ruleplumbism, plumb joint, plumb line, plumbous, plumbous oxide, plumb rule, plumbum, plumcot, plum duff, plume, plumed Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for plumb ruleplumb rule nouna plumb line attached to a narrow board, used by builders, surveyors, etc Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
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