instrument that measures actinic action in radiant energy
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Actinometer Definition from Language, Idioms & Slang Dictionaries & Glossaries
(n.)
An instrument for measuring the direct heating power of the sun's rays.
An instrument for measuring the direct heating power of the sun's rays.
(n.)
An instrument for measuring the actinic effect of rays of light.
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter. AboutAn instrument for measuring the actinic effect of rays of light.
actinometer
\ac`ti*nom"e*ter\ (&?;), n. [gr. &?;, &?;, ray + -meter] (a) an instrument for measuring the direct heating power of the sun's rays. (b) an instrument for measuring the actinic effect of rays of light.
Noun
1. an instrument for measuring the intensity of electromagnetic radiation (usually by the photochemical effect)
(hypernym) measuring instrument, measuring system, measuring device
Actinometer Definition from Encyclopedia Dictionaries & Glossaries
Actinometers are instruments used to measure the heating power of radiation. They are used in meteorology to measure solar radiation as pyrheliometers.
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