Emily Dickinson Lexicon

TUR'PEN-TINE-TREE, n.

A tree of the genus Pistacia, which yields turpentine, and produces not only its proper fruit, but a kind of horny substance which grows on the surfuce of its leaves. This is an excrescence, the effect of the puncture of an insect, and is produced in the some manner us the gulls of other plants. Cyc.