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Definition of bolometer noun from the Oxford Advanced Learner's Dictionary

bolometer

noun

/bəˈlɒmɪtə(r)/

/bəˈlɑːmɪtər/

(physics)

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a device for measuring radiant energy
Word Originlate 19th cent.: from Greek bolē ‘ray of light’ + -meter (see meter).

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See bolometer in the Oxford Advanced American Dictionary

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C2

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