Function: noun
Date: 1951
: a metal plate in a color cathode-ray tube that contains minute apertures permitting passage of electron beams to specific phosphors on the screen during a scan
Function: noun
Date: 1951
: a metal plate in a color cathode-ray tube that contains minute apertures permitting passage of electron beams to specific phosphors on the screen during a scan
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012