undocking

verb

1. (form-of, gerund, participle, present)present participle and gerund of undock

noun

1. The process by which something is undocked; removal from a dock.

   “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.”