n. a form of the kale plant, Brassica oleracea acephala, used as the vegetable spring greens (UK) / collard greens (US)
the GNU version of the Collaborative International Dictionary of English
n. A brassicaceous plant of many varieties, cultivated for its leaves, which are not formed into a compact head like the cabbage, but are loose, and are generally curled or wrinkled; kale.
The Century Dictionary and Cyclopedia
n. A variety of Brassica oleracea, a cabbage with curled or wrinkled leaves which have no tendency to form into a hard head. It is valued chiefly for winter use.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a hardy cabbage with coarse curly leaves that do not form a head
Word Usage
"They do well enough, as does the borecole or kale itself, in all the cooler parts of Australia."