opposed-piston engine

[ uh-pohzd-pis-tuh n ]

/ əˈpoʊzdˈpɪs tən /

noun

a reciprocating engine, as a diesel engine, in which each cylinder has two pistons that move simultaneously away from or toward the center.

Nearby words

opportunity shop, opposable, opposable thumb, oppose, opposed-cylinder, opposed-piston engine, opposeless, opposer muscle of little finger, opposer muscle of thumb, opposite, opposite field

Origin of opposed-piston engine

First recorded in 1965–70

Also called opposed engine.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019