/ray'shee om"i teuhr/ , n.
(in three-color photography) a device for determining the exposure factors of the filters to be used.
[ 1920-25, for an earlier sense; RATIO + -METER ]
/ray'shee om"i teuhr/ , n.
(in three-color photography) a device for determining the exposure factors of the filters to be used.
[ 1920-25, for an earlier sense; RATIO + -METER ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012