photometer meaning: definition, etymology

photometer

noun

US /fəˈtɑmɪtɚ/ · UK /fəˈtɒmɪtə(ɹ)/

Etymology From photo- + -meter.

Natural sciences, Physical sciences, Physics Any of several instruments used to measure various aspects of the intensity of light.

Derived terms: astrophotometer, bathyphotometer, biophotometer, fluorophotometer, goniophotometer, microphotometer, nanophotometer, photopolarimeter, spectrophotometer, sunphotometer, telephotometer
Related terms: photometric, photometry
Hyponyms: colorimetric photometer, distribution photometer, electronic photometer, flame photometer, flicker photometer, grease spot photometer, holophotometer, infrared photometer, integrating-sphere photometer, Joly photometer, Kepler photometer, light-distribution photometer, photoelectric photometer, photoemissive tube photometer, shadow photometer, spectrophotometer, sphere photometer, telephotometer, ultraviolet photometer, visual photometer, wax-block photometer, wedge photometer

verb

Etymology From photo- + -meter.

Astronomy, Natural sciences To measure some aspect of light (from a star) using a photometer.