# Air thermometer

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Air thermometer
Thermometer Ther*mom"e*ter (th[~e]r*m[o^]m"[-e]*t[~e]r), n. [Thermo- + -meter: cf. F. thermom[`e]tre. 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. [1913 Webster]

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 {R['e]aumur}. [1913 Webster] To reduce degrees Fahrenheit to degrees Centigrade, substract 32[deg] and multiply by 5/9; to reduce degrees Centigrade to degrees Fahrenheit, multiply by 9/5 and add 32[deg]. [1913 Webster]

{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. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

### Look at other dictionaries:

• Air thermometer — Air Air ([^a]r), n. [OE. air, eir, F. air, L. a[ e]r, fr. Gr. ah r, air, mist, for a[digamma]hr, fr. root a[digamma] to blow, breathe, probably akin to E. wind. In sense 10 the French has taking a meaning fr. It. aria atmosphere, air, fr. the… …   The Collaborative International Dictionary of English

• air thermometer — orinis termometras statusas T sritis Standartizacija ir metrologija apibrėžtis Dujinis termometras, užpildytas oru. atitikmenys: angl. air thermometer vok. Luftthermometer, n rus. воздушный термометр, m pranc. thermomètre à air, m …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

• air thermometer — orinis termometras statusas T sritis fizika atitikmenys: angl. air thermometer vok. Luftthermometer, n rus. воздушный термометр, m pranc. thermomètre à air, m …   Fizikos terminų žodynas

• air thermometer — noun thermometer that measures temperature by changes in the pressure of a gas kept at constant volume • Syn: ↑gas thermometer • Hypernyms: ↑thermometer …   Useful english dictionary

• air thermometer — a gas thermometer in which the expansible material is air …   Medical dictionary

• air thermometer — device which measures the temperature of the air …   English contemporary dictionary

• Thermometer — Ther*mom e*ter (th[ e]r*m[o^]m [ e]*t[ e]r), n. [Thermo + meter: cf. F. thermom[ e]tre. See {Thermal}.] (Physics) An instrument for measuring temperature, founded on the principle that changes of temperature in bodies are accompanied by… …   The Collaborative International Dictionary of English

• Air — ([^a]r), n. [OE. air, eir, F. air, L. a[ e]r, fr. Gr. ah r, air, mist, for a[digamma]hr, fr. root a[digamma] to blow, breathe, probably akin to E. wind. In sense 10 the French has taking a meaning fr. It. aria atmosphere, air, fr. the same Latin… …   The Collaborative International Dictionary of English

• Air balloon — Air Air ([^a]r), n. [OE. air, eir, F. air, L. a[ e]r, fr. Gr. ah r, air, mist, for a[digamma]hr, fr. root a[digamma] to blow, breathe, probably akin to E. wind. In sense 10 the French has taking a meaning fr. It. aria atmosphere, air, fr. the… …   The Collaborative International Dictionary of English

• Air bath — Air Air ([^a]r), n. [OE. air, eir, F. air, L. a[ e]r, fr. Gr. ah r, air, mist, for a[digamma]hr, fr. root a[digamma] to blow, breathe, probably akin to E. wind. In sense 10 the French has taking a meaning fr. It. aria atmosphere, air, fr. the… …   The Collaborative International Dictionary of English

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