Definition of: wiretap

(wīr′tap′) noun
1. A device used to make a connection with a telephone or telegraph wire to listen to or record the message transmitted.
2. The act of wiretapping.
—v.t. ·tapped, ·tap·ping
1. To connect a wiretap to.
2. To monitor by the use of a wiretap.
—wire′tap′per noun