trunnion

1. 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. Source: opted

2. n. A gudgeon on each side of an oscillating steam cylinder, to support it. It is usually tubular, to convey steam. Source: opted

3. 1. (Gun.) 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. 2. (Steam Engine) A gudgeon on each side of an oscillating steam cylinder, to support it. It is usually tubular, to convey steam. Trunnion plate (Gun.), a plate in the carriage of a gun, mortar, or howitzer, which covers the upper part of the cheek, and forms a bearing under the trunnion. -- Trunnion ring (Gun.), a ring on a cannon next before the trunnions. [R.] Source: webster

4. A cylindrical projection on each side of a piece, whether gun,mortar, or howitzer, serving to support it on the cheeks of thecarriage. See Illust. of Cannon. Source: adambom

5. n:100 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. Source: ecdict

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