'Cereal' definitions:

Definition of 'cereal'

From: WordNet
adjective
Made of grain or relating to grain or the plants that produce it; "a cereal beverage"; "cereal grasses"
noun
Grass whose starchy grains are used as food: wheat; rice; rye; oats; maize; buckwheat; millet [syn: cereal, cereal grass]
noun
Foodstuff prepared from the starchy grains of cereal grasses [syn: grain, food grain, cereal]
noun
A breakfast food prepared from grain

Definition of 'Cereal'

From: GCIDE
  • Cereal \Ce"re*al\, a. [L. Cerealis pert. to Ceres, and hence, to agriculture. See Ceres.] Of or pertaining to the grasses which are cultivated for their edible seeds (as wheat, maize, rice, etc.), or to their seeds or grain. [1913 Webster]

Definition of 'Cereal'

From: GCIDE
  • Cereal \Ce"re*al\ n. Any grass cultivated for its edible grain, or the grain itself; -- usually in the plural. [1913 Webster]