photometer

About 0.31 uses per million words.

Meaning

1. noun Any of several instruments used to measure various aspects of the intensity of light.
2. verb To measure some aspect of light (from a star) using a photometer.

Similar words

light meter exposure meter flicker spectro microphotometer photometrician sunphotometer photometrics photometrist photopolarimeter

Often followed by

is and for head with was in to at

Word family

photometers