#1 cereal n. [cereal grass] grass whose starchy grains are used as food: wheat; rice; rye; oats; maize; buckwheat; millet. wn
#2 cereal a. made of grain or relating to grain or the plants that produce it; "a cereal beverage"; "cereal grasses". wn
#3 cereal n. [grain, food grain] foodstuff prepared from the starchy grains of cereal grasses. wn
#4 cereal n. a breakfast food prepared from grain. wn
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