/ Dictionary / Index A acellular: Meaning and Definition of Find definitions for: a•cel•lu•lar Pronunciation: (ā-sel'yu-lur), [key] — adj. being without cells. composed of tissue not divided into separate cells, as striated muscle fibers. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: acellular (Thesaurus) Aceldama acenesthesia Related Content Daily Word Quiz: eccentric Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language