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Thermometer - Meaning, Definition & English Examples

A thermometer is a device used to measure temperature, commonly in weather, medical, or scientific settings. It typically contains a liquid that expands or contracts with heat or cold.

thermometer

/θɚˈmɑmɪt̬ɚ/ /θəˈmɒmɪtə/

Definition:

A device for measuring temperature, typically using a glass tube with mercury or alcohol.

Synonyms:

temperature gauge, thermocouple, pyrometer

Part of Speech:

noun

Antonyms:

thermostat, barometer

Common Collocations:

digital thermometer, clinical thermometer, mercury thermometer, infrared thermometer, oral thermometer

Derivatives:

thermometric, thermometry

Usage Tips:

Use "thermometer" for measuring body or environmental temperature; avoid confusing it with "thermostat," which regulates temperature.

Common Phrases:

under the weather, running a temperature, take one's temperature

Etymology:

From Greek "thermo-" (heat) + "-meter" (measure), coined in the early 17th century.

Examples:

  • 1. The thermometer showed 98°F this morning.
  • 2. She placed the thermometer under her tongue to check for fever.
  • 3. The outdoor thermometer dropped below freezing overnight.
  • 4. A digital thermometer is faster and safer than mercury ones.

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