PIST PISTA'CHIO,noun [Latin pistachia.] The nut of the Pistacia terebinthus or turpentine tree, containing a kernel of a pale greenish color, of a pleasant taste, resembling that of the almond, and yielding a well tasted oil. It is wholesome and nutritive. The tree grows in Syria, Arabia and Persia.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI