<p><strong>noun</strong></p><ul><li>(plural porterhouses) Also called porterhouse steak.</li><li>A choice piece of beef with a conspicuous T-shaped bone, cut from the short loin and similar to a T-bone steak but with a larger portion of tenderloin.</li><li>Archaic: A house at which porter and other liquors are retailed.</li></ul><p><strong>End of Response</strong></p>