a radioactive transuranic element synthesized by bombarding einsteinium with alpha particles (Md is the current symbol for mendelevium but Mv was formerly the symbol)
the most favorable environment for a plant or animal; "water is the element of fishes"
a straight line that generates a cylinder or cone
the situation in which you are happiest and most effective; "in your element"
one of four substances thought in ancient and medieval cosmology to constitute the physical universe; "the alchemists believed that there were four elements"