\Fus"tic\, n. [F. fustoc, Sp. fustoc. Cf. {Fustet}.]
The wood of the {Maclura tinctoria}, a tree growing in the
West Indies, used in dyeing yellow; -- called also {old
fustic}. [Written also {fustoc}.]
Note: Other kinds of yellow wood are often called fustic; as
      that of species of {Xanthoxylum}, and especially the
      {Rhus Cotinus}, which is sometimes called young fustic
      to distinguish it from the {Maclura}. See {Fustet}.