thermometer
noun
ther·mom·e·ter
thər-ˈmä-mə-tər 
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
Examples of thermometer in a Sentence
Recent Examples on the Web
There was no thermometer in the reach-in coolers, some bags of chips were stored on the floor, and there was insufficient hot water at the sinks.
—
Harriet Ramos, Fort Worth Star-Telegram, 13 Nov. 2025
Use a digital meat thermometer to ensure your chicken is completely cooked before serving.
—Lindsey Desoto, Health, 13 Nov. 2025
Using a food thermometer is the most reliable way to ensure these temperatures are met.
—Katia Hetter, CNN Money, 12 Nov. 2025
Validity is the bedrock of knowledge Historically, validity was primarily concerned with ensuring the precision of scientific measurements, such as whether a thermometer correctly measures temperature or a psychological test accurately assesses anxiety.
—Thomas H. Davenport, The Conversation, 12 Nov. 2025
See All Example Sentences for thermometer
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Harriet Ramos, Fort Worth Star-Telegram, 13 Nov. 2025
Use a digital meat thermometer to ensure your chicken is completely cooked before serving.
—Lindsey Desoto, Health, 13 Nov. 2025
Using a food thermometer is the most reliable way to ensure these temperatures are met.
—Katia Hetter, CNN Money, 12 Nov. 2025
Validity is the bedrock of knowledge Historically, validity was primarily concerned with ensuring the precision of scientific measurements, such as whether a thermometer correctly measures temperature or a psychological test accurately assesses anxiety.
—Thomas H. Davenport, The Conversation, 12 Nov. 2025
See All Example Sentences for thermometer
Cite this Entry
“Thermometer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thermometer. Accessed 19 Nov. 2025.
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Medical Definition
thermometer
noun
ther·mom·e·ter
thə(r)-ˈmäm-ət-ər
: 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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