Abney level

[ab-nee]

noun Surveying.

a hand level for determining elevations and angles of slope.

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British Dictionary definitions for abney level

Abney level

noun

a surveying instrument consisting of a spirit level and a sighting tube, used to measure the angle of inclination of a line from the observer to another point

Word Origin

C20: named after Sir William Abney (1843–1920), British chemist and physicist

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