n., pl., -a·ri (-ə-rī'), or -ars.
A member of a Christian sect flourishing in western Europe in the 12th and 13th centuries that professed a dualistic belief emphasizing ascetic renunciation of the world and was condemned by the Church as heretical.
[French Cathare, from sing. of Medieval Latin Catharī, from Late Greek Katharoi, from pl. of Greek katharos, pure.]
Cathar Cath'ar adj.Catharism Cath'a·rism n.
Catharist Cath'a·rist adj. & n.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.