That division of Speculative Masonry which is engaged in the investigation of the mysteries connected with the Royal Arch, no matter under what name or in what Rite.
Thus the mysteries of the Knight of the Ninth Arch in the Scottish Rite constitute Royal Arch Masonry.
In the York Rite, the Holy Royal Arch Degree is the fourth degree conferred in a ‘Royal Arch Chapter. In England it is a stand alone degree, and a candidate for Exaltation into a Holy Royal Arch Chapter is required to have been a Master Mason for four weeks or more. In Scotland the candidate must also be a Mark Master Mason, a degree which can be conferred within the Chapter if required. Once exalted a candidate becomes a companion, with Royal Arch meetings being described as a convocation.
~~ooOoo~~
This page is adapted from the Glossary at Phoenixmasonry — Used with permission.