Noun
box lacrosse (uncountable)
An indoor version of lacrosse played mostly in North America, and distinguished from field lacrosse.
Synonyms: box, boxla, indoor lacrosse
A game of box lacrosse Box lacrosse is played by teams of six on a hockey rink where the ice has been removed or covered by artificial turf, or in an indoor soccer or lacrosse field. Source: Internet
Box lacrosse is also a much more physical game. Source: Internet