1. (noun)vitamin E, tocopherol, E a fat-soluble vitamin that is essential for normal reproduction; an important antioxidant that neutralizes free radicals in the body
2. (noun)einsteinium, Es, E, atomic number 99 a radioactive transuranic element produced by bombarding plutonium with neutrons
3. (noun)east, due east, eastward, E the cardinalcompasspoint that is at 90 degrees
4. (noun)e the base of the naturalsystem of logarithms; approximately equal to 2.718282...
Definition of 'E'
