Dictionary.com

external-combustion

[ ik-stur-nl-kuhm-buhs-chuhn ]
/ ɪkˈstɜr nl kəmˈbʌs tʃən /
Save This Word!

adjective

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.

QUIZZES

QUIZ YOURSELF ON “ITS” VS. “IT’S”!

Apostrophes can be tricky; prove you know the difference between it’s and its in this crafty quiz!
Question 1 of 12
On the farm, the feed for chicks is significantly different from the roosters’; ______ not even comparable.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Hate Typos? Get Grammar Coach