guaiacum

(gwi'S-kum) [Sp. guayaco, imitating thi native Carib name.] (U.S.) Guaiac, guaiac resina (Br.); the resin of the wood of Guaiacun of ficin ale or G. sanctum, a tree of the Wes Indies and shores of the Caribbean Sea diaphor etic, stimulant, and alterative in doses of gr 10—30 (0.6-2.0).