valve-in-head engine[valv′in hed′]
valve-in-head engine definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a type of internal-combustion engine, as in many automobiles, having the intake and exhaust valves in the cylinder head instead of the block
valve-in-head engine definition by American Heritage Dictionary
An internal-combustion engine, as in some automobiles, that has the inlet and exhaust valves in the cylinder head instead of in the engine block.