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
Transfer pan to preheated oven; roast until a thermometer inserted into thickest portion of breast registers 165°F, 1 hour to 1 hour, 10 minutes.
—
Elizabeth Nelson, Southern Living, 19 Oct. 2025
Roast until the chicken is cooked through the center (an instant-read thermometer should register 165 degrees when inserted in the thickest part), 25 to 30 minutes, depending on the thickness of the meat.
—Lynda Balslev, Mercury News, 17 Oct. 2025
Maass traced her rounds, dressed in crisp blue-and-white stripes, white muslin cap with a black ribbon, thermometer pushed through a buttonhole.
—Literary Hub, 15 Oct. 2025
Parents, Rappaport continued, should be proactive and stock up on essentials—such as a thermometer, acetaminophen or ibuprofen, saline spray and a humidifier—before children get sick.
—Daniella Gray, MSNBC Newsweek, 14 Oct. 2025
See All Example Sentences for thermometer
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Elizabeth Nelson, Southern Living, 19 Oct. 2025
Roast until the chicken is cooked through the center (an instant-read thermometer should register 165 degrees when inserted in the thickest part), 25 to 30 minutes, depending on the thickness of the meat.
—Lynda Balslev, Mercury News, 17 Oct. 2025
Maass traced her rounds, dressed in crisp blue-and-white stripes, white muslin cap with a black ribbon, thermometer pushed through a buttonhole.
—Literary Hub, 15 Oct. 2025
Parents, Rappaport continued, should be proactive and stock up on essentials—such as a thermometer, acetaminophen or ibuprofen, saline spray and a humidifier—before children get sick.
—Daniella Gray, MSNBC Newsweek, 14 Oct. 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 20 Oct. 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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