·noun An instrument for measuring temperature, founded on the principle that changes of temperature in bodies are accompained by proportional changes in their volumes or dimensions.
An instrument to measure the amount of heat by the expansion of a fluid (generally quicksilver) cont...
The Sailor's Word-Book
·add. ·- A thermometer by merely inverting which the temperature may be registered. The column of me...
Webster's Dictionary of the English Language
·- A thermometer filled with water instead of mercury, for ascertaining the precise temperature at w...
An instrument for trying the temperature of the sea at different depths. It consists of a hollow wei...
·add. ·- That one of the two similar thermometers of a psychrometer the bulb of which is moistened; ...
The readings of this instrument, when compared with those of a wet-bulb thermometer, indicate the am...
One of which the bulb is kept moist by the capillary attraction of cotton fibres from an attached re...