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thermometer

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noun ther·mom·e·ter \thə(r)-ˈmä-mə-tər\

Simple Definition of thermometer

  • : an instrument used for measuring temperature

Source: Merriam-Webster's Learner's Dictionary

Full Definition of thermometer

  1. :  an instrument for determining temperature; especially :  one consisting of a glass bulb attached to a fine tube of glass with a numbered scale and containing a liquid (as mercury or colored alcohol) that is sealed in and rises and falls with changes of temperature

thermometric play \ˌthər-mə-ˈme-trik\ adjective
thermometrically play \-tri-k(ə-)lē\ adverb

Origin of thermometer

French thermomètre, from Greek thermē heat + French -o- + -mètre -meter — more at therm


First Known Use: 1633


THERMOMETER Defined for Kids

thermometer

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noun ther·mom·e·ter \thər-ˈmä-mə-tər, thə-ˈmä-\

Definition of thermometer for Students

  1. :  an instrument for measuring temperature



Word Root of thermometer

The Greek word metron, meaning “measure,” gives us the root metr. Words from the Greek metron have something to do with measuring. A thermometer is an instrument that measures temperature. A diameter is the measurement across the center of a circle. The metric system is a system used for measuring size, weight, and volume. A perimeter is the measurement of the outside of a figure or shape.


Medical Dictionary

thermometer

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noun ther·mom·e·ter \thə(r)-ˈmäm-ət-ər\

Medical Definition of thermometer

  1. :  an instrument for determining temperature that usually consists either of a device providing a digital readout or of a glass bulb attached to a fine tube of glass with a numbered scale and containing a liquid (as mercury or colored alcohol) that is sealed in and rises and falls with changes of temperature





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