Goa powder \Go"a pow"der\ [So called from Goa, on the Malabar coast, whither it was shipped from Portugal.] A bitter powder (also called {araroba}) found in the interspaces of the wood of a Brazilian tree ({Andira araroba}) and used as a medicine. It is the material from which chrysarobin is obtained.
Goa powder n : a bitter yellow powder used to treat skin diseases [syn: {araroba}, {chrysarobin}]