sphincter
🇺🇸
/ˈsfɪŋktər/
🇬🇧
/ˈsfɪŋktə(r)/
A muscle that can tighten or relax to control the opening of a body part.
The doctor checked the patient's sphincter to ensure proper functioning.
의사는 환자의括約筋을 검사하여 제대로 작동하는지 확인했습니다.