Breaststroke

имя существительное [спорт] брасс (олимпийский стиль плавания)

Большой англо-русский словарь

Breaststroke

noun a swimming stroke executed in a prone position by coordinating a kick in which the legs are brought forward with the knees together and the feet are turned outward and whipped back with a glide and a backward sweeping movement of the arms • breaststroker noun

Merriam-Webster's Collegiate Dictionary