Dictionaryaq•ua•tonePronunciation: (ak'wu-tōn", ä'kwu-), [key] —n. 1. a lithographic process for printing by offset from a metal plate coated with photosensitized gelatin. 2. a print so produced. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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