Pis*ta"chio (?), n. [It. pistacchio (cf. Sp. pistacho, F. pistache), fr. L. pistacium, Gr. &?;, &?;, fr. Per. pistah. Cf. Fistinut.] (Bot.)
The nut of the Pistacia vera, a tree of the order Anacardiaceæ, containing a kernel of a pale greenish color, which has a pleasant taste, resembling that of the almond, and yields an oil of agreeable taste and odor; -- called also pistachio nut. It is wholesome and nutritive. The tree grows in Arabia, Persia, Syria, and Sicily. [Written also pistachia.]
© Webster 1913
Pis*ta"chio (?), n.
1.
The small anacardiaceous tree, of southern Europe and Asia Minor, which bears the pistachio nut.
2. (Cookery)
The flavor of the pistachio nut, or an ice or confection flavored with it.
3.
Pistachio green.
© Webster 1913