noun
abdominal wall reflex
Medical term for the reflex contraction of abdominal muscles when the skin is stroked.
医師は腹壁反射を調べるために、患者の腹部を軽くこすった。
The doctor lightly stroked the patient's abdomen to test the abdominal wall reflex.
Compound of 腹壁 (abdominal wall) and 反射 (reflex).