actinometer

About 0.02 uses per million words.

Meaning

1. noun An instrument used to measure the heating power of electromagnetic radiation, especially that of solar radiation.

Similar words

pyranometer actinograph absorptiometer dynactinometer actinophone actimeter actometer photoradiometer radiometer actinography

Often followed by

is solution and for time in that was can

Word family

actinometers actinometric actinometries actinometry