1. 头垢：头盖学者craniologist | 头垢dander | 头骨学craniology

2. 皮屑：irritant 刺激物 | dander 皮屑 | trigger 引起

3. 生气,怒气：Damning,毁灭的 | Dander,生气,怒气 | Danger,危险

noun

1. a feeling of anger and animosity

e.g. having one's hackles or dander up

Synonym: hackles

2. small scales from animal skins or hair or bird feathers that can cause allergic reactions in some people