\Nux` vom"i*ca\ [NL., fr. L. nux ? nut + vomere to
vomit.]
The seed of {Strychnos Nuxvomica}, a tree which abounds on
the Malabar and Coromandel coasts of the East Indies. From
this seed the deadly poisons known as strychnine and brucine
are obtained. The seeds are sometimes called Quaker buttons.