trunnion

The trunnion is the stubby cylindrical projection from the side of the cannon

Meaning

Noun

  • One of the short stubby bearings on either side of a cannon; a gudgeon.
  • A similar rotational bearing comprising a rotating arc or ring sliding in the groove of a stationary arc, used in machinery to allow a workpiece to be moved relative to a fixed tool.
  • A similar rotational bearing used in automotive suspensions.

Origin

  • From French trognon.

Modern English dictionary

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