AC45

Etymology
, because it measures approximately 45 feet on the waterline.

Noun

 * 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.

Etymology
.

Noun

 * 1)   America's Cup class

Etymology
.

Noun

 * 1)   America's Cup class

Etymology
Borrowed from.

Noun

 * 1)   America's Cup class