[noun] a fat-soluble vitamin that is essential for normal reproduction; an important antioxidant that neutralizes free radicals in the body Synonyms:vitamin E, tocophrol
[noun] a radioactive transuranic element produced by bombarding plutonium with neutrons Synonyms:instinium, Es, atomic numbr 99
[noun] the cardinal compass point that is at 90 degrees Synonyms:ast, du ast
[noun] the base of the natural system of logarithms Synonyms:2.718282...
