n. tall annual cereal grass bearing kernels on large ears: widely cultivated in America in many varieties; the principal cereal in Mexico and Central and South America since pre-Columbian times
n. the dried grains or kernels or corn used as animal feed or ground for meal
n. ears of corn that can be prepared and served for human food
n. a hard thickening of the skin (especially on the top or sides of the toes) caused by the pressure of ill-fitting shoes