Meaning of WEDGE in English

WEDGE

In mechanics, a device that tapers to a thin edge, usually made of metal or wood, and used for splitting, lifting, or tightening, such as to secure a hammer head onto its handle.

The wedge is considered one of the five simple screw may be thought of as a wedge wrapped around a cylinder.

Britannica English dictionary.      Английский словарь Британика.