Any of numerous cultivated forms of a widely grown,usually tall annual cereal grass(Zea mays)bearing grains or kernels on large ears.

• 谷物广泛生长的，通常高大的一年生的多种禾谷类作物的任一种，（玉蜀黍玉蜀黍属）在大的穗上长有谷粒