chain inclinometern. an instrument for indicating the inclination of a surveyor's chain.
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the world > the earth > earth sciences > geography > map-making > surveying > [noun] > surveying instruments > for measuring inclination or gradient
clinatory1659
chain inclinometera1877
Abney level1883
Abney clinometer1885
gradiometer1899
a1877 E. H. KnightPract. Dict. Mech. I.Chain-inclinometer, a form of level in which the inclination of the surveyor's chain is indicated on a scale by the pointer on the end of the level.