Bible Dictionaries
Phototrichromatic

Webster's Dictionary

(a.) Designating a photomechanical process for making reproductions in natural colors by three printings.

Bibliography Information
Webster, Noah. Entry for 'Phototrichromatic'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​p/phototrichromatic.html. 1828.