/ Dictionary / Index L lesser celandine: Meaning and Definition of Find definitions for: less'er cel'andine Pronunciation: [key] a Eurasian plant, Ranunculus ficaria, of the buttercup family, having heart-shaped leaves and glossy yellow flowers, naturalized in North America. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Lesser Bear lesser cornstalk borer Related Content Daily Word Quiz: eccentric Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language