What is the meaning of Upas?

A tree, Antiaris toxicaria, of the mulberry family, common in the forests of Java and the neighboring islands, with poisonous secretions.

A virulent poison used in Java and the adjacent islands for poisoning arrows and derived from the tree.

A poison prepared from the climbing plant Strychnos tieute.

core of a banana trunk

to lose flavor

core of a banana trunk

an attendant of the sultan

Antiaris toxicaria

poison from the such tree

alternative form of opas

upas (poison from Antiaris toxicaria)

upas (poison from Strychnos tieute)

second-person singular present indicative of upar

second-person singular present indicative of upar

act of removing leaves from plants

removed; devoid of leaves

condition of being removed of all leaves

Source: wiktionary.org