cerealce‧re‧al /ˈsɪriəl/ ●●● noun 1 [countable, uncountable] breakfast food made from grain and usually eaten with milk: a bowl of cereal2[countable] a plant grown to produce grain for foods, such as wheat, rice, etc. [Origin: 1800–1900 French céréale, from Latin cerealis “of Ceres,” from Ceres ancient Roman goddess of grain and farming]