noun, noun which may take the genitive case particle 'no'
impotence; erectile dysfunction
Medical term for erectile impotence. In everyday conversation, 勃起不全 (ぼっきふぜん) or the loanword ED are more common.
陰萎の治療には様々な方法がある。
There are various treatments for impotence.
彼は陰萎の症状を相談するために泌尿器科を受診した。
He visited the urology department to discuss symptoms of impotence.
Compound of 陰 (いん, 'yin; hidden; genital') and 萎 (い, 'wither; droop'), literally 'genital withering'. The exact historical derivation is uncertain, but the term is a Sino-Japanese medical coinage.