The hard, woody central core of an ear of corn after the kernels have been removed, used for various purposes including animal bedding and fuel.
Compound of corn + cob, from Middle English cobb meaning 'lump' or 'head.' The cob is literally the head or core of the corn ear.
Corncobs were so useful that farmers literally wasted nothing—ground into bedding, burned for heat, ground into abrasive powder, used in whiskey—one of history's most economical food byproducts!
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