INVALIDATE (1)

refute, degrade, discredit or deny something someone else considers to be fact. —FSM Specialist Course Approved Glossary Appr. early 1991, —Narconon, Communication and Perception Course Approved Glossary, —PDC Volume 6 Approved Glossary, —Staff Status I Glossary (approved 25-9-90), —Staff Status II Glossary, Approved late Sept. 1990