/ Dictionary / Index R rat-tail file: Meaning and Definition of Find definitions for: rat'-tail file' Pronunciation: [key] a long, narrow file having a circular cross section. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rat-tailed maggot rattan Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language