Definition of "fuel injection" []

• Any of several methods or mechanical systems by which a fuel is reduced to a fine spray and injected directly into the cylinders of an internal-combustion engine. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.