on-line: Meaning and Definition of

on-line

1. operating under the direct control of, or connected to, a main computer (opposed to off-line).
2. (of a network) supplying affiliated stations with all or a substantial part of their programming.
3. of or pertaining to the final editing of a videotaped program.
4. done or accomplished while in operation or active service: on-line maintenance.
5. located on major routes or rail lines:Cf. on-line industries.