undocking

From undock + -ing.

undocking

1. present participle and gerund of undock

undocking (plural undockings)

1. The process by which something is undocked; removal from a dock.
   • 1994, National Research Council (U.S.). Committee on Advances in Navigation and Piloting, Minding the helm: marine navigation and piloting (page 418)

     Six years of training are required. Within the first 2 years, the trainee must observe at least 225 passages, dockings, and undockings: at least 25 of these maneuvers must be performed by the trainee under the supervision of a docking master.