OSSUARY Meaning of OSSUARY in English [ 'ɒsjʊəri ]■ noun ( plural ossuaries ) a container or room for the bones of the dead.OriginC17: from late L. ossuarium , formed irregularly from L. os , oss- 'bone'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004