Definition of thermometer

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Thermometer (n.) 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..

Lern More About Thermometer

At :: At (prep.) The relation of a point or position in a series, or of degree, rate, or value; as, with the thermometer at 80¡; goods sold at a cheap price; a country estimated at 10,000 square miles; life is short at the longest..
Hypsometer :: Hypsometer (n.) An instrument for measuring heights by observation of barometric pressure; esp., one for determining heights by ascertaining the boiling point of water. It consists of a vessel for water, with a lamp for heating it, and an inclosed thermometer for showing the temperature of ebullition..
Rise :: Rise (v.) To reach a higher level by increase of quantity or bulk; to swell; as, a river rises in its bed; the mercury rises in the thermometer..
Thermometrical :: Thermometrical (a.) Made, or ascertained, by means of a thermometer; as, thermometrical observations..
Geothermometer :: Geothermometer (n.) A thermometer specially constructed for measuring temperetures at a depth below the surface of the ground.
Measure :: Measure (n.) To serve as the measure of; as, the thermometer measures changes of temperature..
Graduate :: Graduate (n.) To mark with degrees; to divide into regular steps, grades, or intervals, as the scale of a thermometer, a scheme of punishment or rewards, etc..
Registering :: Registering (a.) Recording; -- applied to instruments; having an apparatus which registers; as, a registering thermometer. See Recording..
Thermometrically :: Thermometrically (adv.) In a thermometrical manner; by means of a thermometer.
Pyrometer :: Pyrometer (n.) An instrument for measuring degrees of heat above those indicated by the mercurial thermometer.
Celsius :: Celsius (n.) The Celsius thermometer or scale, so called from Anders Celsius, a Swedish astronomer, who invented it. It is the same as the centigrade thermometer or scale..
Sensitive :: Sensitive (a.) Having a capacity of being easily affected or moved; as, a sensitive thermometer; sensitive scales..
Pyroscope :: Pyroscope (n.) An instrument for measuring the intensity of heat radiating from a fire, or the cooling influence of bodies. It is a differential thermometer, having one bulb coated with gold or silver leaf..
Telethermometer :: Telethermometer (n.) An apparatus for determining the temperature of a distant point, as by a thermoelectric circuit or otherwise..
Reaumur :: Reaumur (n.) A Reaumur thermometer or scale.
Bulb :: Bulb (n.) An expansion or protuberance on a stem or tube, as the bulb of a thermometer, which may be of any form, as spherical, cylindrical, curved, etc..
Diathermometer :: Diathermometer (n.) An instrument for examining the thermal resistance or heat-conducting power of liquids.
Water Thermometer :: Water thermometer () A thermometer filled with water instead of mercury, for ascertaining the precise temperature at which water attains its maximum density. This is about 39? Fahr., or 4? Centigrade; and from that point down to 32? Fahr., or 0? Centigrade, or the freezing point, it expands..
Fahrenheit :: Fahrenheit (a.) Conforming to the scale used by Gabriel Daniel Fahrenheit in the graduation of his thermometer; of or relating to Fahrenheit's thermometric scale.
Zero :: Zero (n.) The point from which the graduation of a scale, as of a thermometer, commences..
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