cylinder head

English

Noun

cylinder head (plural cylinder heads)

  1. Used other than figuratively or idiomatically: see cylinder,‎ head.
  2. (automotive) A part of an internal combustion engine, usually made as a removable piece, that closes one end of the engine's cylinders.
    • 1958 April, “British Railways First Main-Line Diesel-Hydraulic Locomotive”, in Railway Magazine, page 265:
      Individual cylinder heads are fitted each with two inlet and two exhaust valves, a fuel injector and a pre-combustion chamber.

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