曲きょっ球きゅうきょっきゅうじ字FuriganaMeanings1nouncurveballbaseball›Baseball term for a pitch that curves. Compare カーブ, which is more common in everyday speech.See also: カーブ彼かれの曲きょっ球きゅうは打うちにくい。His curveball is hard to hit.