AC45
noun
Elementary
1
a catamaran sailing racing yacht, with a wingsail mainsail, developed for the 2013 America's Cup world tour, the 2013 America's Cup pre-regatta tune-up league, called the America's Cup World Series.
a catamaran sailing racing yacht, with a wingsail mainsail, developed for the 2013 America's Cup world tour, the 2013 America's Cup pre-regatta tune-up league, called the America's Cup World Series.