/ Dictionary / Index P palmaceous: Meaning and Definition of Find definitions for: pal•ma•ceous Pronunciation: (pal-mā'shus, päl-, pä-mā'-), [key] — adj. belonging to the plant family Palmae. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Palma Palma de Mallorca Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language