— photometric /foh'teuh me"trik/ , photometrical , adj. — photometrist, photometrician /foh'teuh me trish"euhn/ , n.
/foh tom"i tree/ , n.
1. the measurement of the intensity of light or of relative illuminating power.
2. the science dealing with such measurements.
[ 1815-25; photometria. See PHOTO-, -METRY ]