/ Dictionary / Index C churn drill: Meaning and Definition of Find definitions for: churn' drill" Pronunciation: [key] a portable drill rig using a bit fashioned on a massive steel cylinder that is alternately lifted and dropped to drill a hole in earth and rock. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. churn churning Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language