Associations to the word «Actinometer»
Noun
Verb
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Wiktionary
ACTINOMETER, noun. (physics) A device used to measure the heating power of electromagnetic radiation, especially that of solar radiation.
Dictionary definition
ACTINOMETER, noun. An instrument for measuring the intensity of electromagnetic radiation (usually by the photochemical effect).
Wise words
It is only with the heart that one can see rightly; what is
essential is invisible to the eye.