Breadcrumb Home > Dictionary > Index A aristolochiaceous: Meaning and Definition of Find definitions for: a•ris•to•lo•chi•a•ceous Pronunciation: (u-ris"tl-ō"kē-ā'shus), [key] — adj. belonging to the Aristolochiaceae, the birthwort family of plants. Cf. birthwort family. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. aristocratic Aristophanes ✖ Related Content Daily Word Quiz: hortatory Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language