/ Dictionary / Index V valerianaceous: Meaning and Definition of Find definitions for: va•le•ri•a•na•ceous Pronunciation: (vu-lēr"ē-u-nā'shus), [key] — adj. belonging to the plant family Valerianaceae. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. valerian valerian family Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language