/ Dictionary / Index A amygdalaceous: Meaning and Definition of Find definitions for: a•myg•da•la•ceous Pronunciation: (u-mig"du-lā'shus), [key] — adj. belonging or pertaining to the Amygdalaceae, a family of plants bearing fruit containing a single hard seed. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. amygdala amygdalate Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language