concerto grosso
Concise Oxford English Dictionary © 2008 Oxford University Press:
concerto grosso /ˈgrɒsəʊ/
▶noun (pl. concerti grossi /-si/) a musical composition for a group of solo instruments accompanied by an orchestra.
– origin C18: Ital., lit. ‘big concerto’.
'concerto grosso' also found in these Oxford entries:

