ratchet

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ratchet

a steplocking device on surgical instruments. As the handles are closed the jaws are also closed and the ratchet holds them in a locked position. The ratchet consists of a notched bar on each handle, the notches facing and overriding when the handles are closed.
References in periodicals archive ?
MoneyHunt will ratchet up the excitement factor by giving attendees a shot at appearing on its weekly national television show with a live, on-the-spot, camera-in-the-face audition that tests not just their business savvy, but their ability to pitch their business plan on the spot.