/ Dictionary / Index P pelagic division: Meaning and Definition of Find definitions for: pelag'ic divi"sion Pronunciation: [key] the biogeographic realm or zone that comprises the open seas and oceans, including water of all depths. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pelagic Pelagius Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language