Definitions for uncoupleʌnˈkʌp əl
Random House Webster's College Dictionary
un•cou•pleʌnˈkʌp əl(v.)-pled, -pling.
(v.t.)to release the coupling or link between; disconnect.
(v.i.)to become unfastened; let go.
Informal. to divorce or separate.
Origin of uncouple:
disconnect or separate
"uncouple the hounds"
To disconnect or detach one thing from another.
To come loose.
to loose, as dogs, from their couples; also, to set loose; to disconnect; to disjoin; as, to uncouple railroad cars
to roam at liberty