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Definition of plumb line - 3 dictionary results
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plumb line

 
Use plumb line in a Sentence
–noun
1. a cord with a lead bob attached to one end, used to determine perpendicularity, the depth of water, etc. Compare plumb (def. 1).
2. plumb rule.
Origin:
1530–40
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To plumb line
Plumbing
 Mike Diamond is Near You. Fast Affordable Service Contractor
 MikeDiamondServices6.rtrk.com
Why Dig? Why Repipe?
 Save time money and mess with Nu Flow pipe lining. 949-709-2860
 www.nuflowtech.com
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.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
plumb line   (plŭm)  Pronunciation Key 
A line regarded as directed exactly toward the Earth's center of gravity.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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