/ Dictionary / Index D Delta team: Meaning and Definition of Find definitions for: Del'ta team" Pronunciation: [key] an assault unit of highly trained and specialized U.S. troops that can be quickly dispatched to deal with terrorist action. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. delta rhythm delta virus Related Content Daily Word Quiz: fresco Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language