[ noun ] (physics) motor that converts thermal energy to mechanical work
Used in print(Arthur Miller, "The Prophecy," in The Best...)
Finding the key under his shoe , he started the engine , and while it warmed_up he turned to her standing there in the dripping fog , and said , `` Defrost the refrigerator '' .
[ noun ] something used to achieve a purpose
: "an engine of change"
Used in print(Joyce O. Hertzler, American Social Institutions;...)
Historically , religion has also functioned as a tremendous engine of vindication , enforcement , sanction , and perpetuation of various other institutions .
[ noun ] (transportation) wheeled vehicle consisting of a self-propelled engine used to draw trains along railway tracks
Used in print(Louis Zara, Dark Rider....)
He was torn between the excitement in the sun inflamed waters and a little engine chugging northward on the Monticello_Branch .