Definition of "undock"

undock

verb
third-person singular simple present undocks, present participle undocking, simple past and past participle undocked
1. (transitive) To remove (a ship) from a dock.
  1. (astronautics) To depart a spaceship from a dock/berth/mount/mooring under its own power
2. (transitive, computing) To remove from a docking station.
3. (transitive, computing) To drag (a user interface element, such as a toolbar) away from its fixed position so that it floats freely.