(sports) a catamaransailing racing yacht, with a wingsail mainsol, 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.
Related terms
(America's Cup boat class):
Origin
Blend of America's Cup and 45, from the fact that this boat class of sailboatyacht is approximately 45-feet on the waterline
English Wiktionary. Available under CC-BY-SA license.
