This page has 3 definitions of trunnion in English. Trunnion is a noun. Also define these 0 related words and terms: .
trunnion (plural trunnions)
- 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.