noun🔗ShareOne of the short stubby bearings on either side of a cannon; a gudgeon."The model cannon pivoted smoothly because it was securely mounted on its trunnions. "technicalnauticalmilitarymachinepartChat with AIVocabulary GamePractice Reading
noun🔗ShareA 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."The heavy metal mold, supported by sturdy trunnions, tilted smoothly so the worker could easily pour in the molten plastic. "technicalmachineparttechnologyChat with AIVocabulary GamePractice Reading
noun🔗ShareA similar rotational bearing used in automotive suspensions."The mechanic inspected the car's front suspension, paying close attention to the trunnions that allowed the wheels to pivot smoothly. "vehicletechnicalmachinepartChat with AIVocabulary GamePractice Reading
