upas

[ yoo-puh s ]
/ ˈyu pəs /

noun

the poisonous milky sap of a large tree, Antiaris toxicaria, of the mulberry family, native to tropical Asia, Africa, and the Philippine Islands, used for arrow poison.
the tree itself.

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Origin of upas

1775–85; < Javanese: poison, especially dart poison
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

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British Dictionary definitions for upas

upas
/ (ˈjuːpəs) /

noun

a large moraceous tree of Java, Antiaria toxicaria, having whitish bark and poisonous milky sap
the sap of this tree, used as an arrow poison
Also: antiar

Word Origin for upas

C19: from Malay: poison
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012