hog peanut
nounDefinition of hog peanut
: a plant of the genus Amphicarpa that is usually considered to constitute a single variable species (A. bracteata), is widely distributed in eastern and central North America, and produces abundant subterranean fruits, each containing a single edible seed which resembles a peanut, is much relished by hogs, and was formerly important in Amerindian dietary
— called also wild peanut