You searched for: “actinometer
actinometer
1. An instrument for measuring the intensity and penetrating power of actinic rays.
2. A device for measuring light energy; especially, solar and terrestrial radiation.
3. An instrument for measuring the intensity of radiation by measuring the fluorescence prodced by it.
actinometer, actinometry
1. An apparatus for determining the intensity of actinic rays.
2. A device which determines the degree of penetration of such rays.
This entry is located in the following unit: actino-, actin-, actini-, -actinal, actis- + (page 3)