2 文書を見つけるための辞書。

• hard-on, erection
• 勃起
• an erect penis
• 直立した陰茎

• stiffening
• 勃起, 固化, 硬化, 硬直
• the act of becoming stiff; "stiffening his shoulders, he prepared to advance"
• 堅くなる行為