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1. (Plants) a Brazilian leguminous tree, Andira araroba
2. (Pharmacology) Also called: Goa powder a bitter yellow powder obtained from cavities in the wood of this tree, formerly used in medicine to treat skin ailments. See also chrysarobin
[from Portuguese, probably from Tupi, from arara parrot + yba tree]
a•ra•ro•ba(ˌær əˈroʊ bə)
n., pl. -bas.
1. a Brazilian tree, Andira araroba, of the legume family, from which Goa powder is derived.
2. Goa powder.
[1890–1900; < Portuguese < Tupi]