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

Returned to the engine, he replenished the boiler, draining the sacks from the bottom, cast a fleeting glance at the water gauge of the donkey engine, and hastened back to the spring.

From The Rules of the Game by White, Stewart Edward

Jawn took a final glance at the water gauge, then he swung around and removed his cold pipe.

From The Short Line War by Merwin-Webster

The boilers of steam engines are provided with a water gauge and a steam or pressure gauge.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" by Various