疲ひ労ろう骨こっ折せつ

noun

stress fracture

Medical term for a small crack in a bone caused by repetitive force or overuse, rather than a single traumatic injury.

• ランナーは疲ひ労ろう骨こっ折せつのため、しばらく練れん習しゅうを休やすんだ。

  The runner took a break from training for a while due to a stress fracture.