/ Dictionary / Index T twist drill: Meaning and Definition of Find definitions for: twist' drill" Pronunciation: [key] — Mach. Mach. a drill with one or more deep helical grooves in the body. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. twist twisted stomach worm 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