 | WordWeight : Weighing the Words |
| WordWeight : Weighing the Words |
Trunnion
Pronunciation : Trun"nion
Part of Speech : n.
Etymology : [OF. trognon the stock, stump, or truck of a tree, F. trognon a core, stalk, fr.tron a trunk, stem. Cf. Trunk.]
Definition : 1. (Gun.)
Defn: 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)
Defn: 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's Unabridged Dictionary, 1913
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