undock

[uhn-dok]Aerospace.

verb (used with object)

to uncouple (two spacecraft modules or a spacecraft and space station).

verb (used without object)

(of a spacecraft module or spacecraft) to uncouple.

Origin of undock

First recorded in 1920–25; un-² + dock¹

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018