Hypertext Webster Gateway: "bolometer"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Bolometer \Bo*lom"e*ter\, n. [Gr. ? a stroke, ray + -meter.]
(Physics)
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.
From WordNet (r) 1.7 (wn)
bolometer
n : an instrument that measures heat radiation; extremely
sensitive
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