abbreviation for Hubbard DianeticsAuditor: pertaining to a person who has been trained on the Hubbard DianeticsAuditor Course, a course which, in the middle and late 1950s, trained an auditor in the handling of Dianetics techniques and procedures. Today it is a basic course which trains one to deliver auditing as described in Dianetics: The Modern Science of Mental Health by L. Ron Hubbard. —9th ACC Volume 2 Approved Glossary