Thermometer
Thermometer (thẽr*mom"e*tẽr) , noun
[Thermo- + -meter: compare French thermomètre. See Thermal.]
(Physics) An instrument for measuring temperature, founded on the principle that changes of temperature in bodies are accompanied by proportional changes in their volumes or dimensions.
Collocations (3)
Metallic thermometer , a form of thermometer indicating changes of temperature by the expansion or contraction of rods or strips of metal.
Register thermometer or Self-registering thermometer , a thermometer that registers the maximum and minimum of temperature occurring in the interval of time between two consecutive settings of the instrument. A common form contains a bit of steel wire to be pushed before the column and left at the point of maximum temperature, or a slide of enamel, which is drawn back by the liquid, and left within it at the point of minimum temperature.