Pronunciation: | | `aktu'nâmitur
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WordNet Dictionary |
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| Definition: | |
[n] an instrument for measuring the intensity of electromagnetic radiation (usually by the photochemical effect) |
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ACTINOMETER is a 11 letter word that starts with A. |
| See Also: | | measuring device, measuring instrument, measuring system |
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Webster's 1913 Dictionary |
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| Definition: | | \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.
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