noun
hay
HAY/heɪ/
Dried grass or other plants used as animal feed.
The sheep pulls loose hay from the feeding rack beside the bale.

Etymology
Old English heg already meant grass cut for fodder. Its connection with hew highlights cutting rather than drying as the idea behind the name.
In context
But when dried, the poison in this plant, the chemicals in this plant that are poisonous, degrade and they're destroyed. Meaning that if you buy hay for your animals that contains buttercups, there's no need to worry
More examples
- We store bales of hay in the barn.
- The farmer lets the cut grass dry before baling it into hay.
- Our rabbit always has fresh water and plenty of hay.
Forms
haystack noun — A large pile of stored hay.