noun
Refers to land used for grazing livestock or a grassy field; a common agricultural term.
牛が牧草地で草を食べている。
Cows are eating grass in the pasture.
このあたりは広大な牧草地が広がっている。
Vast grasslands stretch out around here.
草原 is a general term for grassy plain or prairie, not necessarily used for grazing.
Compound of 牧草 (bokusō, 'pasture grass') + 地 (chi, 'land').