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Definition of thermometer
thermometer
/θɚˈmɑːmɪtɚ/
ther · mom · e · ter
Adverb:thermometrically
•Plural:thermometers
•Adjective:thermometric
thermometer Lexical Profile
CEFR
A2
Grade
4
Tier
2
Usage
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Wordle Guess
• noun
1
An instrument for measuring and indicating temperature, typically consisting of a glass tube containing a liquid that expands with heat, or a digital sensor that provides an electronic reading.
Example
"The nurse used a digital thermometer to accurately record the patient's body temperature during the clinical trial."
2
Something that serves to indicate, measure, or reflect the state or fluctuations of a particular situation or condition.
Example
"Consumer spending is often viewed as a reliable thermometer of the nation's broader economic health."
Synonyms
View all synonyms for thermometer• Rhymes for thermometer
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Word Origin & Etymology
Coined in the 1620s, from the French word 'thermomètre', derived from the Greek 'thermos' (hot) and 'metron' (measure).
Cite this Entry
Wordmom. (2026). Definition of Thermometer. In Wordmom Dictionary. Retrieved Oct 14, 2026, from https://wordmom.com/dictionary/thermometer