sweet corn

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A variety of corn (Zea mays var. saccharata or rugosa), the common table and canning corn, having kernels that are sweet when young.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun Corn (specifically maize) suitable for eating by humans, as distinguished from corn raised as animal feed.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a corn plant developed in order to have young ears that are sweet and suitable for eating
• noun corn that can be eaten as a vegetable while still young and soft