noun🔗Share흉선A ductless gland, consisting mainly of lymphatic tissue, located behind the top of the breastbone. It is most active during puberty, after which it shrinks in size. It plays an important role in the development of the immune system and produces lymphocytes.""During childhood, the thymus helps the body learn to fight off infections, but it becomes smaller as we get older." "어린 시절 동안 흉선은 신체가 감염과 싸우는 것을 배우도록 돕지만, 나이가 들면서 작아집니다.bodyorgananatomyphysiologymedicinebiologyChat with AIVocabulary GamePractice Reading