Definitions

1. noun

the central core of a ear of corn, consisting of the tough, fibrous base of the leaves and the dried, fibrous stem that supports the ears of corn

“The farmer picked up a corncob from the field to examine its quality.”

2. noun

a device, typically a tube, filled with a fibrous material, used for smoking, especially tobacco

“He puffed on his corncob pipe, feeling nostalgic for the old days.”