Main Entry: icon-o-clast
Etymology: Medieval Latin iconoclastes, from Middle Greek eikonoklastEs, literally, image destroyer, from Greek eikono- + klan to break -- more at CLAST
1 : a person who destroys religious images or opposes their veneration
2 : a person who attacks settled beliefs or institutions
Iconoclasm (Eikonoklasmos, "Image-breaking") is the name of the heresy that in the eighth and ninth centuries disturbed the peace of the Eastern Church, caused the last of the many breaches with Rome that prepared the way for the schism of Photius, and was echoed on a smaller scale in the Frankish kingdom in the West.
I figured it would be cool to have a weekly apologetic vocabulary post. Who am I kidding. I just wanted to have a post with this awesome picture. Here is where I got the pic. Link