Actinometer sentence example

actinometer
  • ACTINOMETER (Gr.
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  • The word actinometer is now usually applied to instruments for measuring the actinic or chemical effect of luminous rays; their action generally depends upon photochemical changes.
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  • Actinometer >>
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  • (See Radiation.) The word actinometer is now usually applied to instruments for measuring the actinic or chemical effect of luminous rays; their action generally depends upon photochemical changes (see Photo-Chemistry).
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