歯ぎしりはがみ

noun, noun or participle which takes 'suru', intransitive verb

teeth grinding; bruxism

Medical/physiological term for involuntary grinding, especially during sleep. Also used as a noun or with する.

• 夜よ中なかに歯はぎしりがひどくて、家か族ぞくに起おこされた。

  My teeth grinding was so bad at night that my family woke me up.

• ストレスで歯はぎしりをするようになった。

  I started grinding my teeth due to stress.

noun, noun or participle which takes 'suru', intransitive verb

gnashing one's teeth; gritting one's teeth

Emotional reaction: grinding teeth in anger, frustration, or vexation. Often used figuratively.

• 彼かれは悔くやしさに歯はぎしりをして、拳こぶしを握にぎりしめた。

  He gnashed his teeth in frustration and clenched his fists.

• 負まけた相あい手てを見みて、歯はぎしりする思おもいだった。

  Seeing the opponent who beat me, I felt like grinding my teeth.