Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun 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.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun internal-combustion engine having both inlet and exhaust valves located in the cylinder head
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