切歯 せっし Meanings Noun incisor (esp. in humans) See also: 門歯 (もんし). Noun, する verb, Intransitive grinding one's teeth; bruxism; gnashing of teeth Kanji 切 earnest. Read as セツ. 歯 tooth. Read as シ. Words containing 切歯 切歯扼腕 (せっしやくわん) being enraged (indignant, impatient) Word lists Anatomy Jinuma: Japanese Dictionary · Word lists