trunnion

== English == === Alternative forms === trunion === Etymology === From French trognon (“core, stump”). === Pronunciation === IPA(key): /ˈtɹʌn.jən/ Rhymes: -ʌnjən === Noun === trunnion (plural trunnions) (firearms) One of the short stubby bearings on either side of a cannon; a pintle. (engineering) 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. (engineering) A shaft, held by a bearing, at each end or side of a rotatable object. (automotive) A similar rotational bearing used in automotive suspensions. ==== Derived terms ==== ==== Translations ====