ALTARPIECE
Meaning of ALTARPIECE in English
al ‧ tar ‧ piece /ˈɔːltəpiːs $ ˈɒːltər-/ BrE AmE noun [countable]
a painting or ↑ sculpture behind an altar
Longman Dictionary of Contemporary English.
Longman - Словарь современного английского языка.
2012