/un kup"euhl/ , v. , uncoupled, uncoupling .
v.t.
1. to release the coupling or link between; disconnect; let go: to uncouple railroad cars.
v.i.
2. to become unfastened; let go: The glider uncoupled from the tow plane.
[ 1300-50; ME unco ( u ) plen; see UN- 2 , COUPLE ]