(OR "path") The specification of a node (file OR directORy) in a hierarchical file system. The path is usually specified by listing the nodes top-down, separating the directORies by the pathname separatOR ("/" in Unix, "" in MS-DOS). A pathname may be an absolute pathnameOR a {relative pathname}. The part of the pathname of a file after the last separatOR is called the basename. (1997-03-10)