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E, e | the 5th letter of the Roman alphabet | |
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vitamin E, E, tocopherol | a fat-soluble vitamin that is essential for normal reproduction; an important antioxidant that neutralizes free radicals in the body | |
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E, einsteinium, Es, atomic number 99 | a radioactive transuranic element produced by bombarding plutonium with neutrons | |
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e | the base of the natural system of logarithms; approximately equal to 2.718282... | |
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east, E, due east, eastward | the cardinal compass point that is at 90 degrees |