A horizon

used by United States troops in World War I and in World War II and in the Korean War n a horizontal rod that serves as a support for gymnasts as they perform exercises n a heating element in an electric fire n (law) a railing that encloses the part of the courtroom where the judges and lawyers sit and the case is tried v prevent from entering

a windlass rotated in a horizontal plane around a vertical axis

n an arm exercise performed by pulling yourself up on a horizontal bar until your chin is level with the bar

plural of chin-up n an arm exercise performed by pulling yourself up on a horizontal bar until your chin is level with the bar

It consists of a compass whose needle plays over a circle graduated to 360�, and of a horizontal brass bar at the ends of which are standards with narrow slits for sighting, supported on a tripod by a ball and socket joint. n