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thermometer

Pronunciation: /θəˈmɒmɪtə/

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Definition of thermometer

noun

  • an instrument for measuring and indicating temperature, typically one consisting of a narrow, hermetically sealed glass tube marked with graduations and having at one end a bulb containing mercury or alcohol which extends along the tube as it expands.

Derivatives

thermometric


adjective

thermometrical


adjective

thermometry

noun

Origin:

mid 17th century: from French thermomètre or modern Latin thermometrum, from thermo- 'of heat' + -metrum 'measure'

thermometer in other Oxford dictionaries

Definition of thermometer in the US English dictionary