A flight maneuver in which an airplane flies a circular path in an approximately vertical plane, with the lateral axis of the airplane remaining horizontal, that is, an inside loop.

A sequence of computer instructions which are executed repeatedly, but usually with address modifications changing the operands of each iteration, until a terminating condition is satisfied.

1. A closed path or circuit over which a signal can circulate, as in a feedback control system.

2. Commercially, the portion of a connection from central office to subscriber in a telephone system.

3. See <<mesh>>

See <<coupling loop>>, <<loop antenna>>

1. A reel of motion picture film or magnetic tape whose ends are spliced together, so that it may be played repeatedly without interruption.

2. A closed circuit of pipe in which materials and components may be placed to test them under different conditions of temperature, irradiation, and so forth.

A line which begins and ends at the same point of the graph.

1. A closed curve on a graph, such as a hysteresis loop.

2. That part of a standing wave where the vertical motion is greatest and the horizontal velocities are least.

3. See <<antinode>>