CATAPLASM Meaning of CATAPLASM in English [ 'katəplaz(ə)m ]■ noun archaic a plaster or poultice.OriginME: from OFr. ~e or late L. ~a , from Gk kataplasma , from kataplassein 'plaster over'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004