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plumb bob

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noun
  1. plummet(def 1).
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Origin of plumb bob

First recorded in 1825–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words

bobleadplumbplummet

British Dictionary definitions for plumb bob

plumb bob

noun
  1. the weight, usually of lead, at the end of a plumb line; plummet
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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