Fus·tic n.  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.

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