THERMOMETER
thermometer
(noun) measuring instrument for measuring temperature
Source: WordNet® 3.1
Etymology
Noun
thermometer (plural thermometers)
An apparatus used to measure temperature.
Anagrams
• thermometre
Source: Wiktionary
Ther*mom"e*ter, n. Etym: [Thermo- + -meter: cf. F. thermomètre. See
Thermal.] (Physics)
Definition: 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.
Note: The thermometer usually consists of a glass tube of capillary
bore, terminating in a bulb, and containing mercury or alcohol, which
expanding or contracting according to the temperature to which it is
exposed, indicates the degree of heat or cold by the amount of space
occupied, as shown by the position of the top of the liquid column on
a graduated scale. See Centigrade, Fahrenheit, and RĂ©aumur. To reduce
degrees Fahrenheit to degrees Centigrade, substract 32° and multiply
by Air thermometer, Balance thermometer, etc. See under Air, Balance,
etc.
– 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.
Source: Webster’s Unabridged Dictionary 1913 Edition