/ Dictionary / Index P plumbaginaceous: Meaning and Definition of Find definitions for: plum•bag•i•na•ceous Pronunciation: (plum-baj"u-nā'shus), [key] — adj. belonging to the Plumbaginaceae, the leadwort family of plants. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: plumbaginaceous (Thesaurus) plumb plumbaginous Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language