(basketball) The rectangular or trapezoidal area between the free-throw line and the end line.

An organism that is not directly dependent on another organism for survival.

An area in which the local or regional authorities have banned nuclear weapons and nuclear power stations.

An international region in which obstacles to unrestricted trade have been reduced to a minimum.

(physics) the average distance travelled between two similar events; especially by molecules in a gas or liquid, electrons or phonons in a crystal or neutrons in a moderator

(soccer) a free kick from which a goal may be scored only after the ball has been played by at least one other player

(soccer) a free kick from which a goal may be scored directly

(law, informal) the concept that a dog is not considered dangerous until it has bitten someone.

Able to do as one pleases, unconstrained by social ties or responsibilities.

non-esterified fatty acid