Question: is the maize a fruit?
Answer: "Corn is a seed derived from the flower/ovary of the corn plant," he says, "so is technically a fruit." More specifically, corn is a caryopsis, which is a type of fruit in which the pericarp (that's the fleshy bit, like the part of a peach that you eat) and seed coat are fused tightly. ... Thus, grains are a type of fruit.