Definition of: cereal

(sir′ē·əl) noun
1. An edible starchy grain yielded by certain plants of the grass family, as rice, wheat, rye, oats, etc.
2. Any of the plants yielding such grains.
3. A breakfast food made from a cereal grain.
—adjective Pertaining to edible grain. ◆ Homophone: serial [<L cerealis of grain <Ceres, goddess of grain]