upas(redirected from upas trees)
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1. A deciduous tree (Antiaris toxicaria) of tropical Africa and Asia that yields a latex used as an arrow poison.
2. The poison obtained from this tree or from similar trees.
[Malay (pohun) upas, poison (tree), of Javanese origin.]
1. (Plants) a large moraceous tree of Java, Antiaria toxicaria, having whitish bark and poisonous milky sap
2. (Elements & Compounds) the sap of this tree, used as an arrow poison
[C19: from Malay: poison]
a large tropical mulberry tree, Antiaris toxicaria, of Africa, Asia, and the Philippines, that has a milky sap used as an arrow poison.
[1775–85; < Javanese: poison]