JMdict: 1950850

球速 【きゅうそく】

  1. [n] speed of a pitched ball; (pitcher's) pace
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Kanji in this word:

Kanji Meanings On Readings Kun Readings
球 Ball, Sphere キュウ たま
速 Quick, Fast ソク はや.い, はや-, はや.める, すみ.やか