/ Dictionary / Index A acinarious: Meaning and Definition of Find definitions for: ac•i•nar•i•ous Pronunciation: (as"u-nâr'ē-us), [key] — adj. Bot. covered with globose vesicles resembling grape seeds, as certain algae. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. acinaciform aciniform Related Content Daily Word Quiz: novice Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language