/ Dictionary / Index A Antarctic Peninsula: Meaning and Definition of Find definitions for: Antarc'tic Penin'sula Pronunciation: [key] a peninsula in Antarctica, S of South America. Cf. Graham Land, Palmer Peninsula. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Antarctic Ocean Antarctic Plate Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language