i ‧ con ‧ o ‧ clast /aɪˈkɒnəklæst $ -ˈkɑː-/ BrE AmE noun [countable] formal
[ Date: 1600-1700 ; Language: Medieval Latin ; Origin: iconoclastes , from Greek eikon ( ⇨ ↑ icon ) + klan 'to break' ]
someone who attacks established ideas and customs
i ‧ con ‧ o ‧ clast /aɪˈkɒnəklæst $ -ˈkɑː-/ BrE AmE noun [countable] formal
[ Date: 1600-1700 ; Language: Medieval Latin ; Origin: iconoclastes , from Greek eikon ( ⇨ ↑ icon ) + klan 'to break' ]
someone who attacks established ideas and customs
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012