Pernambuco noun2 •The hard, reddish wood of a tree of the tribe Caesalpinieae, often used as dyewood; especially Paubrasilia echinata, used to make violin bows.When I annealed the bows over heat, the smell was quite different from the Pernambuco wood we are used to. — 1998 •A state of the Northeast Region, Brazil. Capital: Recife.