spirit level

noun Surveying.

a device for determining true horizontal or vertical directions by the centering of a bubble in a slightly curved glass tube or tubes filled with alcohol or ether.
Also called level.

Origin of spirit level

First recorded in 1760–70

Words nearby spirit level

spirit compass, spirit gum, spirit is willing but the flesh is weak, the, spirit lake, spirit lamp, spirit level, spirit leveling, spirit of enterprise, spirit of hartshorn, spirit of nitrous ether, spirit rapping

Example sentences from the Web for spirit level

British Dictionary definitions for spirit level

spirit level

noun

a device for setting horizontal surfaces, consisting of an accurate block of material in which a sealed slightly curved tube partially filled with liquid is set so that the air bubble rests between two marks on the tube when the block is horizontal