ˌbeləˈdänə noun
( -s )
Etymology: Italian, literally, fine lady, from bella, feminine of bello beautiful (from Latin bellus ) + donna lady; from its use as a cosmetic — more at beauty , donna
1. : a European poisonous plant (Atropa belladonna ) which is extensively grown in the U.S., which has reddish bell-shaped flowers and shining black berries, and from the root and leaves of which atropine is produced — called also deadly nightshade
2. : a medicinal extract from the belladonna plant
3. : belladonna lily