Wise to the Word: Zest
Can citrus be zestful? You bet it can. The outermost skin of lemons, limes and oranges contains the strongest flavor of the fruit, the zest. It is pared off with a knife or citrus zester.
Zest is only the colored part of the skin and not the white underneath. Its aromatic oils flavor a wide range of raw and cooked recipes and baked goods.
The Repository (Canton, Ohio)