bolometer

POS

Noun

HYPHEN

bo=lom=e=ter

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CIDE DICTIONARY

bolometer, n. [Gr. a stroke, ray + -meter.].

An instrument for measuring minute quantities of radiant heat, especially in different parts of the spectrum; -- called also actinic balance, thermic balance. S. P. Langley. [1913 Webster]

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OXFORD DICTIONARY

bolometer, n. a sensitive electrical instrument for measuring radiant energy.

Derivative

bolometry n. bolometric adj.

Etymology

Gk bole ray + -METER

For further exploring for "bolometer" in Webster Dictionary Online

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