/ˌpaɪloʊɪˈrɛkʃən/
皮肤上的毛发因寒冷、恐惧或强烈情绪刺激而竖立的生理现象,俗称"起鸡皮疙瘩"或"汗毛竖起"。
When she walked into the cold room, piloerection covered her arms immediately.
当她走进冰冷的房间时,手臂上立刻起了鸡皮疙瘩。
The haunting melody was so powerful that it induced piloerection in nearly every member of the audience, a visceral reminder of music's ability to move us physically.
那段令人难忘的旋律如此震撼,几乎让在场的每一位观众都起了鸡皮疙瘩——这是音乐能从生理上打动我们的有力证明。
该词由拉丁语词根组合而成。pilo- 来自拉丁语 pilus,意为"毛发";erection 来自拉丁语 erectio,意为"竖立、直立",源自动词 erigere(使竖起)。合起来字面意思即"毛发竖立"。这是一个医学和生理学术语,用于描述立毛肌收缩导致体毛竖起的现象,在日常英语中更常用 goosebumps(鸡皮疙瘩)或 gooseflesh 来表达。