/ Dictionary / Index A anacanthous: Meaning and Definition of Find definitions for: an•a•can•thous Pronunciation: (an"u-kan'thus), [key] — adj. Bot. having no spines or thorns. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. anabranch anacardiaceous Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language