/ Dictionary / Index O optical scanning: Meaning and Definition of Find definitions for: op'tical scan'ning Pronunciation: [key] the process of interpreting data in printed, handwritten, bar-code, or other visual form by a devicethat scans and identifies the data. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. optical rotation optical sound Related Content Daily Word Quiz: leonine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language