anacardiaceous,a.Bot.|ænaˌkɑːdɪˈeɪʃəs| [f.mod.L. anacardi-um(see above) + -aceous.] Belonging to the family Anacardiaceæ, to which the Cashew-nut belongs, as well as the trees that produce mangos, pistachios, mastic, and fustic. 1853in Mayne Exp. Lex.