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

Reaumur :: Reaumur (a.) Of or pertaining to Rene Antoine Ferchault de Reaumur; conformed to the scale adopted by Reaumur in graduating the thermometer he invented.
Rise :: Rise (n.) The distance through which anything rises; as, the rise of the thermometer was ten degrees; the rise of the river was six feet; the rise of an arch or of a step..
Delicate :: Delicate (a.) Affected by slight causes; showing slight changes; as, a delicate thermometer..
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..
Meteorometer :: Meteorometer (n.) An apparatus which transmits automatically to a central station atmospheric changes as marked by the anemometer, barometer, thermometer, etc..
Geothermometer :: Geothermometer (n.) A thermometer specially constructed for measuring temperetures at a depth below the surface of the ground.
Zero :: Zero (n.) The point from which the graduation of a scale, as of a thermometer, commences..
Sensible :: Sensible (a.) Hence: Liable to impression from without; easily affected; having nice perception or acute feeling; sensitive; also, readily moved or affected by natural agents; delicate; as, a sensible thermometer..
Sensitive :: Sensitive (a.) Having a capacity of being easily affected or moved; as, a sensitive thermometer; sensitive scales..
Observation :: Observation (n.) Specifically, the act of measuring, with suitable instruments, some magnitude, as the time of an occultation, with a clock; the right ascension of a star, with a transit instrument and clock; the sun's altitude, or the distance of the moon from a star, with a sextant; the temperature, with a thermometer, etc..
Thermometrical :: Thermometrical (a.) Of or pertaining to a thermometer; as, the thermometrical scale or tube..
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..
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..
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.
Aethrioscope :: Aethrioscope (n.) An instrument consisting in part of a differential thermometer. It is used for measuring changes of temperature produced by different conditions of the sky, as when clear or clouded..
Thermometrical :: Thermometrical (a.) Made, or ascertained, by means of a thermometer; as, thermometrical observations..
Calibrate :: Calibrate (v. i.) To ascertain the caliber of, as of a thermometer tube; also, more generally, to determine or rectify the graduation of, as of the various standards or graduated instruments..
Thermometrograph :: Thermometrograph (n.) An instrument for recording graphically the variations of temperature, or the indications of a thermometer..
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..
Reaumur :: Reaumur (n.) A Reaumur thermometer or scale.
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