/ Dictionary / Index M mooring screw: Meaning and Definition of Find definitions for: moor'ing screw" Pronunciation: [key] a broad, augerlike anchor used for securing buoys in soft-bottomed lakes, rivers, etc. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mooring rack Moorish Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language