EARTH'NUT, n. The groundnut, or root of the Arachis; a small round bulb or knob, like a nut. This root or bulb is formed from the germen, which becomes a pod and is thrust into the ground by a natural motion of the stalk.
It is properly the fruit of the plant, and differs from other fruit only in the circumstance of ripening in the earth.
EARTH'NUT, n. The pignut, or bunium; a globular root, somewhat resembling in taste a chestnut, whence it is called bulbocastanum.
- The popular name of a spherical knob, the size of a cherry, which is black without and white within, and is a part of the root of the Carum Bulbocastanum. DeCand.
- The seed-vessel and seed of the Atrachis hypogæa, a leguminous plant. It lies upon, or is buried in the earth, where it ripens.
name given to various roots, tubers, or pods grown under or on the