chuck(redirected from four jaw chuck)
Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.
Pathology A round or square flat metal grid on which tissue is placed in a cryostat as a solid support for cutting frozen sections
A clamp or fastener that secures a moving part of a tool, or the object being worked on.
a hand grip to be attached to intramedullary pins to enable the surgeon to rotate or drive them into bone.