(1) TAP: Terminal Area Productivity (2) Tap: To draw Energy from a circuit.

Alternate definition of tap:
1. To monitor, with or without authorization, the information that is being transmitted via a communications circuit. 2. To extract a portion of the signal from an optical Fiber or communications link. Note: One method of tapping an Optical Fiber is to bend it to a relatively short radius, thus promoting Radiation of a portion of the optical signal.