also: スーパーウエルターきゅう
noun
super welterweight
A weight class in boxing and other combat sports, between welterweight and middleweight.
彼はスーパーウェルター級のタイトルを防衛した。
He defended his super welterweight title.
Variant spelling with ウエ instead of ウェ; less common but still seen.
Borrowed from English 'super welterweight', combined with the Japanese suffix 級 (class/division).