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noun por·ter·house \ˈpȯr-tər-ˌhau̇s\

Definition of porterhouse

  1. 1 :  a house where malt liquor (as porter) is sold

  2. 2 :  a large steak cut from the thick end of the short loin to contain a T-shaped bone and a large piece of tenderloin — see beef illustration

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