corn
n. uncountablen. a tall plant that produces large yellow seeds on a cob, which people eat as a vegetable or grind into flour. In some places, it is also called maize.
n. a cereal plant that yields large grains set in rows on a cob. The term is used broadly for the primary cereal crop of a region, though in modern international English it refers specifically to maize.
We grilled fresh corn on the cob for the summer barbecue.
Farmers in the Midwest harvest vast fields of corn every autumn to supply the food and fuel industries.
The domestication of corn from the wild grass teosinte represents one of the most significant agricultural achievements in human history, fundamentally altering the diet of global populations.
Uncountable when referring to the crop or the grain in bulk; countable when referring to the individual plants or the specific ears of corn.