The Collaborative International Dictionary of English v.0.48:
vitamin E \vitamin E\ n. a fat-soluble vitamin that is essential for normal reproduction. It is found in vegetable oils, butter, and eggs. Syn: tocopherol, alpha-tocopherol. [WordNet 1.5]WordNet (r) 3.0 (2006):
vitamin E n 1: a fat-soluble vitamin that is essential for normal reproduction; an important antioxidant that neutralizes free radicals in the body [syn: vitamin E, tocopherol, E]