noun

thumbscrew

thumbscrew

Tighten the thumbscrew to secure the camera.

Tighten the thumbscrew to secure the camera.

The museum displayed a medieval thumbscrew.

The museum displayed a medieval thumbscrew.

to tighten/loosen ((a thumbscrew)) to turn a thumbscrew to make it more or less tight Tighten the thumbscrew to secure the camera.

wing screw, butterfly screw

A compound of 'thumb' and 'screw'. It refers to a screw that can be turned by the thumb and forefinger.

Picture a screw with 'wings' that you can easily grip and turn with your thumb and finger.

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