Abney level

[ ab-nee ]

noun

, Surveying.

1. a hand level for determining elevations and angles of slope.

Abney level

/ ˈæbnɪ /

noun

1. 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 History and Origins

Origin of Abney level¹

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