ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷ noun
Etymology: porter (II) + house
1. archaic : a house where porter and other malt liquors are sold
2. also porterhouse steak : a large steak cut from the thick end of the short loin and containing a T-shaped bone and a large piece of tenderloin — compare t-bone ; see beef illustration