A box or container from which animals eat or from which feed is distributed, commonly used for horses and livestock.
From 'feed' plus 'box,' a straightforward compound that became standard terminology in farming and animal husbandry for the vessel that holds an animal's meal.
The term 'feedbox' is so practical and literal that it barely feels like a compound at all—it's the kind of everyday tool word that shows how English creates new vocabulary by simply putting practical nouns together, which is how most new words form naturally.
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