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Measuring the intensity of electromagnetic radiation (especially of the sun's rays)
Answer for the clue "Measuring the intensity of electromagnetic radiation (especially of the sun's rays) ", 11 letters:
actinometry
Word definitions for actinometry in dictionaries
Wiktionary
Word definitions in Wiktionary
n. 1 the measurement of the heating power of electromagnetic radiation, especially that of solar radiation 2 the measurement of the chemical or actinic energy of light
WordNet
Word definitions in WordNet
n. measuring the intensity of electromagnetic radiation (especially of the sun's rays)
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Actinometry \Ac`ti*nom"e*try\, n. The measurement of the force of solar radiation. --Maury. The measurement of the chemical or actinic energy of light. --Abney.