cylinder head

noun

1. (in a reciprocating engine or pump) a detachable plate or cover on the end opposite to that from which the piston rod or connecting rod projects.

cylinder head

noun

1. the detachable metal casting that fits onto the top of a cylinder block. In an engine it contains part of the combustion chamber and in an overhead-valve four-stroke engine it houses the valves and their operating mechanisms Sometimes shortened tohead

Word History and Origins

Origin of cylinder head¹

First recorded in 1880–85