/ Dictionary / Index P platen: Meaning and Definition of Find definitions for: plat•en Pronunciation: (plat'n), [key] — n. a flat plate in a printing press for pressing the paper against the inked type or plate to produce an impression. a rotating cylinder used for the same purpose. the roller of a typewriter. (on a planing machine or the like) the bed to which the work is fastened. (on a testing machine) a plate for applying compression to a sample. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: platen (Thesaurus) plate mark plate proof Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language