erethism
/ˈerɪθɪzəm/noun
mass noun
1
- excessive sensitivity or rapid reaction to stimulation of a part of the body, especially the sexual organs（尤指性器官等身体部位的）易兴奋症。
2
- a state of abnormal mental excitement or irritation（异常的）（脑）兴奋增强, 兴奋过度。
词源
early 19th cent.: from French éréthisme, from Greek erethismos, from erethizein 'irritate'.