onychophagia

[ on-i-koh-fey-juh, -jee-uh ]

noun

, Psychiatry.

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

Other Words From

• on·y·choph·a·gist [on-, uh, -, kof, -, uh, -jist], noun

Word History and Origins

Origin of onychophagia¹

1895–1900; < Greek onycho- (combining form of ónyx nail, claw; onyx ) + -phagia