pro-am /ˌprəʊ ˈæm◂ $ ˌproʊ-/ BrE AmE noun [countable]
[ Date: 1900-2000 ; Origin: pro + am (from amateur ) ]
a competition, especially in golf, for ↑ professional s (=people who play for money) and ↑ amateur s (=people who play just for pleasure)
—pro-am adjective