noun
anterior cruciate ligament; ACL
Anatomical term for the ligament in the knee; commonly used in sports medicine contexts.
彼はスキーで転んで前十字靭帯を損傷した。
He injured his anterior cruciate ligament when he fell while skiing.
前十字靭帯再建術は膝の安定性を回復させる。
ACL reconstruction surgery restores knee stability.