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Science · Grades 3–4

Thermometer

noun

An instrument used to measure temperature.

Example Sentences

"The thermometer showed the water was at 100°C."

"A digital thermometer gives quick, accurate temperature readings."

Synonyms & Related Terms

temperature gauge

Quick Check

Which best describes the meaning of thermometer?

Study Tips

To remember thermometer, try writing it in a sentence of your own. Connect it to something you already know about science.

Use it in conversation today — saying a word aloud three times helps lock it into long-term memory.