What is another word for gas thermometer?
Pronunciation: [ɡˈas θɜːmˈɒmɪtə] (IPA) 
A gas thermometer is a device that measures temperature using a gas-filled bulb and a graduated scale. There are several synonyms for this tool that are commonly used in the scientific and engineering fields. One such term is a gas-filled thermometer, which refers to the same device employing a sealed chamber filled with gas to measure temperature. Another term that is used is the gas-actuated thermometer which operates through changes in pressure of gas when heated or cooled. Lastly, extensional gas thermometer is a term used for the thermometer that use elongated tube containing gas due to the movement of molecules temperature is measured. Despite the different terms used to describe gas thermometers, they all serve the same function of accurately measuring temperature using the properties of gas.
