cyst
🇺🇸
/sɪst/
🇬🇧
/sɪst/
A sac-like pocket that is filled with fluid, air, or other substances, which can form on or inside the body.
The doctor discovered a cyst on the patient's skin that needed to be drained.
医師は患者の皮膚に排液が必要だった腫瘍を発見しました。