[ aw-tuh-krohm ]
/ ˈɔ təˌkroʊm /
a material once used for color photography, consisting of a photographic emulsion applied over a multicolored screen of minute starch grains dyed red, green, and blue-violet.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for autochrome
"And so that is the way these autochrome plates we have here were made," concluded the scientist.The Boy's Book of New Inventions|Harry E. Maule