Lexic.us

Definition of 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.

Definition of Trunnion

1. Noun. The short stubby bearings on either side of a cannon; a gudgeon ¹

2. Noun. 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. ¹

¹ Source: wiktionary.com

Definition of Trunnion

1. a pin or pivot on which something can be rotated [n -S]

Medical Definition of Trunnion

1. 1. A cylindrical projection on each side of a piece, whether gun, mortar, or howitzer, serving to support it on the cheeks of the carriage. 2. A gudgeon on each side of an oscillating steam cylinder, to support it. It is usually tubular, to convey steam. Trunnion plate, a ring on a cannon next before the trunnions. Origin: OF. Trognon the stock, stump, or truck of a tree, F. Trognon a core, stalk, fr.tron a trunk, stem. Cf. Trunk. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Trunnion

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