/ Dictionary / Index S spinal: Meaning and Definition of Find definitions for: spi•nal Pronunciation: (spīn'l), [key] — adj. of, pertaining to, or belonging to a spine or thornlike structure, esp. to the backbone. —n. a spinal anesthetic. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: spinal (Thesaurus) spinach-rhubarb spinal accessory nerve Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language