Main Entry: upas

Pronunciation: \ˈyü-pəs\

Function: noun

Etymology: Indonesian Malay pohon upas poison tree

Date: 1814

1 : a tall tropical Asian tree (Antiaris toxicaria) of the mulberry family with a latex that contains poisonous glycosides used as an arrow poison; also : a poisonous concentrate of the juice or latex of a upas
2 : a poisonous or harmful influence or institution