gas thermometer

noun

1. a device for measuring temperature by observing the change in either pressure or volume of an enclosed gas.

gas thermometer

noun

1. a device for measuring temperature by observing the pressure of gas at a constant volume or the volume of a gas kept at a constant pressure

Word History and Origins

Origin of gas thermometer¹

First recorded in 1875–80

Example Sentences

The air thermometer agrees most nearly with that of the ideally perfect gas thermometer, while the mercurial thermometer differs very much from it in some cases.

From Project Gutenberg

The permanent character of helium might be taken advantage of in its application to the gas thermometer.

From Project Gutenberg