Library /sys$common/syshlp/sca$menu.hlb Terms, Assdec  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  Any declaration that is not a primary declaration.
  Typically, associated declarations provide information
  needed by the compiler to refer to an object. You
  can cross-reference query associated declarations by
  selecting Associated for the Usage query attribute. See
  also Primary declaration.