noun
sexual impotence; erectile dysfunction
Formal, clinical term for the inability to achieve or maintain an erection. In everyday conversation, ED (イーディー) is more common.
性的不能の治療には様々な方法がある。
There are various treatments for sexual impotence.
彼は性的不能に悩んで医者に相談した。
He consulted a doctor about his erectile dysfunction.
Compound of 性的 (sexual) and 不能 (inability, impotence). The exact historical derivation is uncertain, but the term follows standard Sino-Japanese word formation patterns.