trunnion

[ truhn-yuh n ]
/ ˈtrʌn yən /

noun

either of the two cylindrical projections on a cannon, one on each side for supporting the cannon on its carriage.
any of various similar supports for machinery.

Origin of trunnion

First recorded in 1615–25, trunnion is from the French word trognon trunk, stump, core (of fruit)

OTHER WORDS FROM trunnion

trun·nioned, adjective

Words nearby trunnion

trunkfish, trunkful, trunking, trunks, trunnel, trunnion, truro, truss, truss bridge, truss hoop, truss rod

Example sentences from the Web for trunnion

British Dictionary definitions for trunnion

trunnion
/ (ˈtrʌnjən) /

noun

one of a pair of coaxial projections attached to opposite sides of a container, cannon, etc, to provide a support about which it can turn in a vertical
the structure supporting such a projection

Derived forms of trunnion

trunnioned, adjective

Word Origin for trunnion

C17: from Old French trognon trunk