Kale n. : A variety of cabbage in which the leaves do not form a head, being nearly the original or wild form of the species.

Kale n. : See Kail, 2.

Example:
How can i tenderize Kale without cooking it?

Taxonomy
kale, Lutes, Curly kale, Ornamental kale, Siberian kale, cooking kale, Brassica oleracea, varieties, Bowen's Kale, cabbage, vegetable, free encyclopedia, leaves, vitamin K, plants, Origin, leaf types, the Middle Ages.

Defination from the web:
Kale or borecole is a form of cabbage (Brassica oleracea Acephala Group), green or purple, in which the central leaves do not form a head. ... Kale will also tolerate nearly all soils provided that drainage is satisfactory. ... Places where kale grows are called kalefields. ...