oat What is the Definition of oat?Noun:annual grass of Europe and North Africa; grains used as food and fodder (referred to primarily in the plural: `oats')seed of the annual grass Avena sativa (spoken of primarily in the plural as `oats') Other meanings of oat (synonyms, cognates). ENRU oat овес, овсяный oatmeal овсянка Frequently viewed: grouping meaningsyntax meaninglatency definitionmainly meaningphone meaningobtain definitionposition meaningdefinition of highlightdefinition of dogdefinition of brutemode meaningbed in a sentence A B C D E F G H I J K L M N O P Q R S T U V W X Y Z