What does corncob mean?
A corncob is the tough, cylindrical central core of an ear of maize, the part to which rows of kernels are attached. Once the kernels have been stripped away — by hand at the dinner table, by machine in food processing, or by animals in a field — what remains is the corncob: a fibrous, pale-yellow structure that most people regard as kitchen waste but which has surprisingly many uses. Dried corncobs have long served as fuel, animal bedding, abrasive grit, and raw material for industrial products such as absorbents. In American folk culture the word carries a second, affectionate meaning: the corncob pipe, a cheap rustic smoking pipe whose bowl was traditionally carved from a dried cob, immortalised in art and song as a symbol of rural life. The term is neutral in tone and common in everyday speech, particularly in North America where corn is a dietary staple. Whether encountered at a summer barbecue or in a folksy portrait, 'corncob' is a small word with deep agricultural roots.
nounThe central cylindrical core of an ear of maize (corn), on which the kernels grow, typically left behind after the kernels have been stripped off or eaten. It is also used as a pipe material for smoking tobacco.
- The cylindrical central core of an ear of maize to which the kernels are attached, especially once the kernels have been removed.
- A piece of dried corncob used as the bowl of a smoking pipe (a corncob pipe).
"After the cook stripped the last kernels for the salad, she tossed the bare corncob into the compost bin."
"He gnawed the sweetcorn clean, leaving a bare corncob on his plate."
"Grandpa sat on the porch puffing away at his old corncob pipe."
Regular plural; also commonly written as two words ('corn cobs') with identical meaning.
"A heap of dried corncobs was stacked beside the barn for kindling."
Corncobs aren't waste — dried and ground, they've been used for everything from abrasive grit and animal bedding to industrial absorbents, and a good corncob makes a classic American smoking pipe.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of corncob
Corncob is a compound of 'corn' and 'cob', both words of Old English and broader Germanic origin. 'Corn' originally meant any small hard grain or seed before becoming the standard American term for maize, while 'cob' is a Germanic word denoting a rounded lump or head, applied from around the early seventeenth century to the core of an ear of corn. The compound arose naturally in agricultural English as maize cultivation spread; it is chiefly used in American and British English alike, though 'corn' itself means wheat in Britain, so the compound there refers unambiguously to maize.
How corncob is actually used
Informal to neutral register; the word is common in everyday American English and in farming/cooking contexts. The compound 'corncob pipe' is strongly associated with rural Americana.
Easily confused with corncob
'Corn' refers to the cereal crop (or its grain) as a whole, while 'corncob' refers specifically to the woody central core of an ear of corn on which the kernels sit.