/leed"in'/ , n.
1. something that leads in or introduces; introduction; opening.
2. Radio , Television.
a. the connection between an antenna and a transmitter or receiving set.
b. the portion of a program or script that precedes or introduces a commercial.
adj.
3. (of a conductor) carrying input to an electric or electronic device or circuit, esp. from an antenna.
[ 1910-15; n., adj. use of v. phrase lead in ]