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 upas2: a poisonous or harmful influence or institution