a pneumatic, heavy-duty, pincerlike tool that is inserted into the body of a wrecked vehicle to pry sections of it apart: used esp. to free people trapped inside
See Jaws of Life in American Heritage Dictionary 4
(jôz)
A trademark used for a pneumatic tool consisting of a pincerlike metal device that is inserted into the body of a severely damaged vehicle and opened to provide access to people trapped inside.