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upas

[yoo-puh s] /ˈyu pəs/
noun
1.
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.
2.
the tree itself.
Origin
1775-1785
1775-85; < Javanese: poison, especially dart poison
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for upas

upas

/ˈjuːpəs/
noun
1.
a large moraceous tree of Java, Antiaria toxicaria, having whitish bark and poisonous milky sap
2.
the sap of this tree, used as an arrow poison
Also antiar
Word Origin
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
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Word Origin and History for upas
n.

legendary poisonous tree of Java, 1783, from Malay upas "poison," in pohun upas "poison tree." The story appears to have originated in Dutch in 1770s.

Online Etymology Dictionary, © 2010 Douglas Harper
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