신체의 털이 보통 자라는 부위에서 부분적 또는 완전히 빠지는 증상.
The partial or complete absence of hair from areas of the body where it usually grows; baldness.
예문:
"The patient was diagnosed with alopecia areata after noticing small, round bald patches on her scalp."
"Chemotherapy often causes temporary alopecia as a side effect of the treatment."