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Thesaurus: trunnions

plural of trunnion n. A cylindrical projection on each side of a piece, whether gun, mortar, or howitzer, serving to support it on the cheeks of the carriage. See Illust. of Cannon. n. A gudgeon on each side of an oscill…

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  1. plural of trunnion n. A cylindrical projection on each side of a piece, whether gun, mortar, or howitzer, serving to support it on the cheeks of the carriage. See Illust. of Cannon. n. A gudgeon on each side of an oscillating steam cylinder, to support it. It is usually tubular, to convey steam.