/ Dictionary / Index R rooster tail: Meaning and Definition of Find definitions for: roost'er tail" Pronunciation: [key] the wake thrown up behind a speeding boat or the dust thrown up behind a speeding vehicle. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. roosterfish root Related Content Daily Word Quiz: nonchalant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language