onychophagia

/on-i-koh-fey-juh, -jee-uh/US // ˌɒn ɪ koʊˈfeɪ dʒə, -dʒi ə //

嗜睡症,嗜食症,嗜睡癖,嗜食癖

Definitions

n.名词 noun

1
Psychiatry.
- : the practice of biting one's nails, especially when done habitually and as a symptom of emotional disturbance.