- 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
WordReference Random House Unabridged Dictionary of American English © 2026
gas′ thermom′eter,
- Physicsa device for measuring temperature by observing the change in either pressure or volume of an enclosed gas.
- 1875–80
Collins Concise English Dictionary © HarperCollins Publishers::
gas thermometer n
'gas thermometer' also found in these entries (note: many are not synonyms or translations):