thermometry

n. measure of temperature

A thermometer is a device that measures temperature or temperature gradient, using a variety of different principles. The word thermometer is derived from two smaller word fragments: thermo from the Greek for heat and meter from Greek, meaning to measure. A thermometer has two important elements, the temperature sensor (e.g. the bulb on a mercury thermometer) in which some physical change occurs with temperature, plus some means of converting this physical change into a value (e.g. the scale on a mercury thermometer). Industrial thermometers commonly use electronic means to provide a digital display or input to a computer.
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Ther·mom·e·try n. 1. Measurement of temperature. 2. The technology of temperature measurement. ther mo·met ric adj. [more]Thermometry - Community and Resources

Noun
1. the measurement of temperature
(hypernym) measurement, measuring, measure, mensuration

(n.)
The estimation of temperature by the use of a thermometric apparatus.