In the United States, the T-bone has the meat-cutting classification IMPS 1174; the porterhouse is IMPS 1173. In British usage, followed in Commonwealth countries, porterhouse refers to the strip steak side of a T-bone steak, while the tenderloin side is called the fillet.
In set theory, an ordinal number, or ordinal, is one generalization of the concept of a natural number that is used to describe a way to arrange a collection of objects in order, one after another. Any finite collection of objects can be put in order just by the process of counting: labeling the objects with distinct whole numbers.
A URL is a Universal Resource Locator, a long fancy phrase for what is essentially a street address for a particular house - or in this case a web page or file. You may be aware that on most computers, files and programs are stored in folders (also known as directories).