/ Dictionary / Index J juglandaceous: Meaning and Definition of Find definitions for: ju•glan•da•ceous Pronunciation: ( j"glan-dā'shus), [key] — adj. belonging to the plant family Juglandaceae. Cf. walnut family. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. jughead Jugoslav Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language