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from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The cast metal block containing the cylinders of an internal-combustion engine.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The metal casting that contains the piston cylinders of an engine

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a metal casting containing the cylinders and cooling ducts of an engine


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