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"
a member of the Union Army during the American Civil War
national; especially in reference to the government of the United States as distinct from that of its member units; "the Federal Bureau of Investigation"; "federal courts"; "the federal highway program"; "federal property"
characterized by or constituting a form of government in which power is divided between one central and several regional authorities; "a federal system like that of the United States"; "federal governments often evolved out of confederations"
of or relating to the central government of a federation; "a federal district is one set aside as the seat of the national government"
an illegal enterprise (such as extortion or fraud or drug peddling or prostitution) carried on for profit
a sports implement (usually consisting of a handle and an oval frame with a tightly interlaced network of strings) used to strike a ball (or shuttlecock) in various games