water gauge

American  

noun

1. any device for indicating the height of water in a reservoir, tank, boiler, or other vessel.

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water gauge British  

noun

1. Also called: water glass.  an instrument that indicates the presence or the quantity of water in a tank, reservoir, or boiler feed

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Etymology

Origin of water gauge

First recorded in 1700–10

Example Sentences

Operators there encountered a similar problem, where one water gauge malfunctioned, and the other gave an accurate reading.

From New York Times • Nov. 16, 2018

He would cover the white spots on the fire box. with an eye on the water gauge, then he would come back to the bench and talk.

From Time Magazine Archive

It consists simply of a straight pipette, A B, to which is affixed laterally, at the upper part, a small U-shaped water gauge.

From Scientific American Supplement, No. 561, October 2, 1886 by Various

The water gauge at Sacramento indicated feet and inches in going up while flour indicated dollars and cents in going up.

From California, 1849-1913; or, the rambling sketches and experiences of sixty-four years' residence in that state by Woolley, L. H. (Lell Hawley)

Here Jawn's eyes shifted to the water gauge.

From The Short Line War by Merwin-Webster