# plumb line

plumb line
noun
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 point (Freq. 1)
Syn: ↑perpendicular
Hypernyms: ↑cord
Hyponyms: ↑lead line, ↑sounding line, ↑plumb rule
Part Meronyms: ↑plumb bob, ↑plumb, ↑plummet

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noun
1.
a. : a line or cord having at one end a plumb bob or other weight and used to determine verticality : plummet
b.
2.
a. : a line directed to the center of gravity of the earth : a vertical line
b. obsolete : a line perpendicular to another
3.

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1. a cord with a lead bob attached to one end, used to determine perpendicularity, the depth of water, etc. Cf. plumb (def. 1).
2. See plumb rule.
[1530-40]

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plumb line noun
1. A line to which a bob is attached to show the vertical line
2. A vertical line
3. A plummet
• • •
Main Entry:plumb

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plumb line UK US noun [countable] [singular plumb line plural plumb lines]
a piece of string with a metal object fixed to the bottom, used for checking whether a wall is straight or for measuring the depth of water
Thesaurus: general hand toolshyponym instruments used in mathematics and geometryhyponym

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plumb line,
1. a line with a plumb at the end, used to find the depth of water or to see if a wall is vertical.
2. a line that is vertical, such as one formed by the surface of a wall.

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n. a line with a plumb attached to it, used for finding the depth of water or determining the vertical on an upright surface

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noun, pl ⋯ lines [count]
: a tool that consists of a small, heavy object attached to a string or rope and that is used especially to see if something (such as a wall) is perfectly vertical — called also (US) plumb bob

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ˈplumb line f9 [plumb line plumb lines]
a piece of thick string with a weight attached to one end, used to find the depth of water or to test whether a wall, etc. is straight

Useful english dictionary. 2012.

### Look at other dictionaries:

• Plumb line — Plumb Plumb (pl[u^]m), n. [F. plomb, L. plumbum lead, a leaden ball or bullet; cf. Gr. mo lybos, mo libos, mo lybdos. Cf. {Plummet}, {Plunge}.] A little mass or weight of lead, or the like, attached to a line, and used by builders, etc., to… …   The Collaborative International Dictionary of English

• plumb line — plumb′ line n. 1) naut. sur navig. a cord with a lead bob attached to one end, used to determine perpendicularity, the depth of water, etc Compare plumb 1) 2) sur bui plumb rule • Etymology: 1530–40 …   From formal English to slang

• plumb line — ► NOUN ▪ a line with a plumb attached to it …   English terms dictionary

• plumb line — n. 1. see PLUMB (n. ) 2. a vertical line …   English World dictionary

• plumb line — plumb lines N COUNT A plumb line is a piece of string with a weight attached to the end that is used to check that something such as a wall is vertical or that it slopes at the correct angle …   English dictionary

• plumb line — n a piece of string with a small heavy object tied to one end, used for measuring the depth of water, or for checking whether something such as a wall is built exactly upright …   Dictionary of contemporary English

• plumb line — plumb ,line noun count a piece of string with a metal object attached to the bottom, used for checking whether a wall is straight or for measuring the depth of water …   Usage of the words and phrases in modern English

• plumb line — UK / US noun [countable] Word forms plumb line : singular plumb line plural plumb lines a piece of string with a metal object fixed to the bottom, used for checking whether a wall is straight or for measuring the depth of water …   English dictionary

• plumb-line — ˈ ̷ ̷| ̷ ̷ transitive verb Etymology: plumb line : to test the verticality or find the depth of by means of a plumb line; broadly : test, scrutinize …   Useful english dictionary

• plumb line — noun Date: 15th century 1. a line (as of cord) that has at one end a weight (as a plumb bob) and is used especially to determine verticality 2. a line directed to the center of gravity of the earth ; a vertical line …   New Collegiate Dictionary