What in the World is "Velveting?"

Ever had stir fry from a really good Chinese restaurant and been amazed at the silky texture of the meat?  This texture is achieved by using a technique called velveting:  coating the meat in a mix of cornstarch, egg whites, and seasonings before frying.  The coating forms a crust that seals in moisture and protects the meat from the high heat of the wok.

Mmm...tasty!