cataplexy

cat.a.plex.y

n.（名词）
A sudden loss of muscle tone and strength, usually caused by an extreme emotional stimulus.
猝倒：通常由一种极度的感情刺激引起的肌肉弹性和力气的突然丧失

来源：
From Greek kataplôxis [fixation (of the eyes)]
源自 希腊语 kataplôxis [（眼睛视线的）固定]
from kataplôssein [to astound, terrify]
源自 kataplôssein [使惊愕，恐吓]
kata- [intensive pref.] * see cata-
kata- [强调性前缀] *参见 cata-
plôssein plôk- [to strike] * see pl3k- 2
plôssein plôk- [打击] *参见 pl3k- 2

【引伸】
cat.aplec.tic