/ Dictionary / Index W warm sector: Meaning and Definition of Find definitions for: warm' sec"tor Pronunciation: [key] — Meteorol. Meteorol. the region of warmest air bounded by the cold and warm fronts of a cyclone. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. warmouth warm spot Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language