ratiometer
[ rey-shee-om-i-ter ]
/ ˌreɪ ʃiˈɒm ɪ tər /
noun
(in three-color photography) a device for determining the exposure factors of the filters to be used.
Words nearby ratiometer
ratio,
ratio scale,
ratio test,
ratiocinate,
ratiocination,
ratiometer,
ration,
rational,
rational form,
rational function,
rational horizon