hays
n. C / Un. dried grass that people use to feed farm animals like horses and cows. It is usually cut and stored in large bundles called bales.
n. grass that has been mown and dried for use as fodder. Plural form of 'hay', though the singular is more common when referring to the material as a mass.
The farmer stores the dry hays in the barn for winter.
Different types of hays, such as alfalfa and timothy, provide varying levels of nutrition for the livestock.
The agricultural study compared several local hays to determine which variety maintained the highest protein content after six months of storage in humid conditions.
Usually uncountable when referring to the material ('a pile of hay'); the plural 'hays' is used to distinguish between different botanical varieties or commercial types.