photometer 1
noundomain: artefact
Princeton WordNet [ver.3.1]
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EnglishDefinition
measuring instrument for measuring the luminous intensity of a source by comparing it (visually or photoelectrically) with a standard source
Hypernym
instrument that shows the extent or amount or quantity or degree of something
EnglishHyponym
a photometer for comparing two light radiations wavelength by wavelength
