Wiktionary
vb. (context transitive English) To remove (something that was clamped).
Usage examples of "unclamp".
As the outer air-lock hatch closed, he irised the tunnel-tube shut, released its seal with an outgushing of air, and unclamped the tube.
When the incoming water had reached equal pressure with only an air bubble two feet from the ceiling, he dove down and unclamped the torpedo tube doors.
Tess unclamped the ashtray from her hand and moved back toward her chair.
Somehow she unclamped her fingers from their death grip on the drapery.
Connor knelt in front of her, gingerly unclamping her fingers from the trowel handle and placing the weapon out of reach.
Could see her in the bedroom from the hearth unclamping the busk of her stays: white.
By the time Annie and the others climbed out of the shuttle, an enormous crane already towered overhead and a ground crew was already unclamping pallets of cargo.