cereal

(sîrˈē-əl)

1. a. A grass such as wheat, oats, or corn, the starchy grains of which are used as food.
   b. The grain of such a grass.
2. Any of several other plants or their edible seed or fruit, such as buckwheat or grain amaranth.
3. A food prepared from any of these plants, especially a breakfast food made from commercially processed grain.