a process of color photography in which the colors are formed by the combination of red, green, and blue-violet.
Compare subtractive process.
Origin of additive process
First recorded in 1930–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for additive process
a photographic process in which the desired colours are produced by adding together appropriate proportions of three primary coloursCompare subtractive process
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012