1
hysterics
informal a wildly emotional and exaggerated reaction〈非正式〉歇斯底里的反应（或发作）：the widow had hysterics and the inquest was wrapped up quickly.
那寡妇有歇斯底里的反应, 因此审讯草草结束。
1.1
- uncontrollable laughter狂笑：
this started them both giggling and they fled upstairs in hysterics.
这让他俩都哈哈大笑, 然后狂笑着逃上楼去了。
2
- a person suffering from hysteria癔病患者。
- another term for HYSTERICAL (in sense 2).同HYSTERICAL （义项2）。
词源
mid 17th cent. (as an adjective)： via Latin from Greek husterikos 'of the womb', from hustera 'womb'(hysteria being thought to be specific to women and associated with the womb).