Definition of water gauge in US English:

water gauge

(US water gage)

noun

  • 1A gauge for measuring the depth or some other property of water.

  • 2A gauge that shows the pressure of a gas or vapour relative to ambient atmospheric pressure, typically by means of a U-shaped tube where the difference in the height of the water in the two arms indicates the pressure difference between them.

Origin

Late 17th century; earliest use found in Robert Plot (bap. 1640, d. 1696), naturalist and antiquary. From water + gauge.

Pronunciation

water gauge

/ˈwɔːtə ɡeɪdʒ/