incisor

noun

in·​ci·​sor in-ˈsī-zər 

: a front tooth typically adapted for cutting

especially : one of the cutting teeth in mammals located between the canines when canines are present see tooth illustration

Examples of incisor in a Sentence

Recent Examples on the Web

Because deer have no upper incisors, leaves and branches will look as if they were torn or ripped off. —Arricca Elin Sansone, Southern Living, 2 Nov. 2024

The findings are inconclusive; Robbie’s teeth seem bigger and whiter, but she’s had the same small knick in one lateral incisor since early adulthood. —Emma Alpern, Vulture, 8 Oct. 2024

And sometimes a goy has Hebrew letters on the back of his incisors. —Indiewire Staff, IndieWire, 12 Aug. 2024

Their upper and lower incisors can grow about a sixteenth of an inch each week. —Eric Lagatta, USA TODAY, 1 Feb. 2024

Word History

First Known Use

1666, in the meaning defined above

Kids Definition

incisor

noun

in·​ci·​sor in-ˈsī-zər 

: a front tooth for cutting

especially : one of the cutting teeth between the canines of a mammal

Medical Definition

incisor

noun

in·​ci·​sor in-ˈsī-zər 

: a front tooth adapted for cutting

especially : any of the eight cutting human teeth that are located between the canines with four in the lower and four in the upper jaw