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

a crop (other than fruits or vegetables) that is grown for agricultural purposes

corn whose kernels contain both hard and soft starch and become indented at maturity

corn having kernels with a hard outer layer enclosing the soft endosperm

corn having kernels almost entirely of soft starch