[ ik-stur-nl-kuh m-buhs-chuh n ]
/ ɪkˈstɜr nl kəmˈbʌs tʃən /
noting or pertaining to an engine, as a steam engine, in which fuel ignition takes place outside the cylinder, turbine, or the like, in which heat energy is transformed into mechanical force.
Words nearby external-combustion
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019