You searched for: “actinometry
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)
1. Measurement of light energy in photochemistry.
2. Measurement of solar energy.