/ Dictionary / Index S spinescent: Meaning and Definition of Find definitions for: spi•nes•cent Pronunciation: (spī-nes'unt), [key] — adj. becoming spinelike. ending in a spine. bearing spines. somewhat spinelike; coarse, as hair. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. spinel ruby spinet 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