thermometer

noun

ther·​mom·​e·​ter thər-ˈmä-mə-tər How to pronounce thermometer (audio)
thə-ˈmä-mə-tər
plural thermometers
: an instrument for determining temperature
specifically : one consisting of a sensor housed in a metal probe that registers a change in electrical resistance as a change in temperature
thermometric adjective
thermometrically adverb

Examples of thermometer in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Use an instant-read thermometer inserted into the thickest part of the steak to assess the temperature. Essence, 12 Feb. 2025 Save big on baby items, like $100 off a convertible crib with a compatible mattress and an infrared thermometer that will come in handy all year long. Katrina Cossey, Parents, 11 Feb. 2025 Add chicken; cook until light golden brown and a thermometer inserted into thickest portion of chicken registers 165°F, 2 to 4 minutes per side. Jasmine Smith, Southern Living, 8 Feb. 2025 Simmons had a staffer hold before the court a display shaped like a thermometer showing that the county has so far spent $400,000 of taxpayer funds on outside legal counsel in the Johnson case. Cody Copeland, Fort Worth Star-Telegram, 3 Feb. 2025 See all Example Sentences for thermometer 

Word History

Etymology

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

First Known Use

1633, in the meaning defined above

Time Traveler
The first known use of thermometer was in 1633

Dictionary Entries Near thermometer

Cite this Entry

“Thermometer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thermometer. Accessed 23 Feb. 2025.

Kids Definition

thermometer

noun
ther·​mom·​e·​ter thə(r)-ˈmäm-ət-ər How to pronounce thermometer (audio)
: an instrument for measuring temperature
thermometric adjective

Medical Definition

thermometer

noun
ther·​mom·​e·​ter thə(r)-ˈmäm-ət-ər How to pronounce thermometer (audio)
: 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

More from Merriam-Webster on thermometer

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