belladonna
noun /ˌbeləˈdɒnə/
/ˌbeləˈdɑːnə/
[uncountable]- (also deadly nightshade)a very poisonous plant with purple flowers and black berries
- a poisonous drug made from deadly nightshade
Word Originmid 18th cent.: from modern Latin, from Italian bella donna ‘fair lady’, perhaps from the use of its juice to add brilliance to the eyes by dilating the pupils.