/ Dictionary / Index S spiral-bound: Meaning and Definition of Find definitions for: spi•ral-bound Pronunciation: (spī'rul-bound'), [key] — adj. having a spiral binding. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. spiral binding spiral casing Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language