Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Calabar bean

play
noun Cal·a·bar bean \ˈka-lə-ˌbär-\

Definition of Calabar bean

  1. :  the dark brown highly poisonous leguminous seed of a tropical west African woody vine (Physostigma venenosum) that is used as a source of physostigmine and was used formerly as an ordeal poison in African witchcraft trials



Origin of calabar bean

Calabar, Nigeria


First Known Use: 1864


Medical Dictionary

Calabar bean

play
noun Cal·a·bar bean \ˈkal-ə-ˌbär-\

Medical Definition of Calabar bean

  1. :  the dark brown poisonous seed of a tropical African woody vine of the genus Physostigma (P. venenosum) that is used as a source of physostigmine




Learn More about calabar bean


Seen and Heard

What made you want to look up Calabar bean? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to work hard

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image567572573

Which of these is a synonym of unctuous?

maudlin oily prompt angry
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ