Hȳ'dro-mĕt'ro-grăph, n.
n. [Gr. ὕδωρ, water, μέτρον, measure, and γράφειν, to describe.] An instrument for determining and recording the quantity of water discharged from a pipe, orifice, &c., in a given time.
n. [Gr. ὕδωρ, water, μέτρον, measure, and γράφειν, to describe.] An instrument for determining and recording the quantity of water discharged from a pipe, orifice, &c., in a given time.