- a tall Javanese tree (Antiaris toxicaria) of the mulberry family, whose whitish bark yields a poisonous, milky juice used as an arrow poison
- the juice of this tree
- something harmful or deadly in its influence
Origin of upasshort for Malay pohon upas, literally , poison tree (; from Javanese upas, plant poison)
- A deciduous tree (Antiaris toxicaria) of tropical Africa and Asia that yields a latex used as an arrow poison.
- The poison obtained from this tree or from similar trees.
Origin of upasMalay (pohun) upas, poison (tree), of Javanese origin.
(usually uncountable, plural upases)
- (usually countable, botany) A tree Antiaris toxicaria of the breadfruit family, common in the forests of Java and the neighboring islands, with poisonous secretions.
- (uncountable) A virulent poison used in Java and the adjacent islands for poisoning arrows derived from the tree.
- (uncountable) A poison prepared from a climbing plant Strychnos tieute
From Malay upas.