Electronic describes something that is produced or operated by charged electrons. (adjective)
An example of electronic is a television being plugged into a wall socket.
An example of electronic used as an adjective is the phrase electronic banking which refers to a process where funds are transferred through computerized systems such as automated teller machines and online banking.
Of, based on, operated by, or otherwise involving the controlled conduction of electrons or other charge carriers, especially in a vacuum, gas, or semiconducting material.
Of, relating to, or produced by means of electronics: electronic navigation; electronic books.
Of or relating to music produced or altered by electronic means, as by a tape recorder or synthesizer.
Of, implemented on, or controlled by a computer or computer network.