Thermometer that measures temperature by changes in the pressure of a gas kept at constant volume.

synonym: air thermometer.

Roget 389: thermometer, thermometrograph^†, mercury thermometer, alcohol thermometer, clinical thermometer, dry-bulb thermometer, wet-bulb thermometer, Anschutz thermometer [G.], gas thermometer, telethermometer; color-changing temperature indicator; thermopile, thermoscope^†; pyrometer, calorimeter, bomb calorimeter; thermistor, thermocouple.    [temperature-control devices] thermostat, thermoregulator.    (3) Taste ... show more