PHOTOMETERS
Definition
PHOTOMETERS is the plural of PHOTOMETER.
noun PHOTOMETER: measuring instrument for measuring the luminous intensity of a source by comparing it (visually or photoelectrically) with a standard source.
PHOTOMETERS is the plural of PHOTOMETER.
noun PHOTOMETER: measuring instrument for measuring the luminous intensity of a source by comparing it (visually or photoelectrically) with a standard source.