/ Dictionary / Index D drillstock: Meaning and Definition of Find definitions for: drill•stock Pronunciation: (dril'stok"), [key] — n. a device for holding a drill. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. drillship drill string Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language