Actinometer
English Translation from English to English dictionary online for the word Actinometer
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1 n.
An instrument for measuring the direct heating power of the sun's rays.
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2 n.
An instrument for measuring the actinic effect of rays of light.
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3 n.
An instrument for measuring the direct heating power of the sun's rays.
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4 n.
An instrument for measuring the actinic effect of rays of light.