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View synonyms for plumb line
plumb line
noun
- a cord with a lead bob attached to one end, used to determine perpendicularity, the depth of water, etc. Compare plumb ( def 1 ).
plumb line
noun
- a string with a metal weight at one end that, when suspended, points directly towards the earth's centre of gravity and so is used to determine verticality, the depth of water, etc
- another name for plumb rule
plumb line
/ plŭm /
- A line regarded as directed exactly toward the Earth's center of gravity.
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Word History and Origins
Origin of plumb line1
First recorded in 1530–40
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Example Sentences
On either side of this isolated bar of sandstone a plumb-line might have been dropped straight to the level of the river.
From Project Gutenberg
Supports of dressed stone truly fixed with the plumb line are perfectly stable of themselves.
From Project Gutenberg
Dæd´alus is also mentioned as the inventor of the axe, plumb-line and augur.
From Project Gutenberg
Titiens then in a formal manner laid the first brick, using the plumb-line to ascertain that the work had been properly done.
From Project Gutenberg
He found a magnetic ridge line running approximately parallel to the line of no deflection of the plumb line.
From Project Gutenberg
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