rotameter

[ roh-tam-i-ter, roh-tuh-mee- ]
/ roʊˈtæm ɪ tər, ˈroʊ təˌmi- /

noun

an instrument for measuring the rate of flow of a liquid, consisting of a tapered vertical tube in which a small float is forced upward until its weight balances the fluid force.

Origin of rotameter

partial translation of German Rotamesser (1911), equivalent to Rota(tion) rotation + Messer measurer, meter

Words nearby rotameter

rot, rot., rota, rota bed, rotachute, rotameter, rotan, rotaplane, rotarian, rotary, rotary beater

British Dictionary definitions for rotameter

Rotameter
/ (ˈrəʊtəˌmiːtə) /

noun

trademark a device used for measuring the flow of a fluid. It consists of a small float supported in a tapering glass by the flow of the fluid, the height of the float indicating the rate of flow