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

His hair—blond and swept up like Bowie’s—caught the sun, his gold incisor glinting behind his grin (the upshot of a dental emergency along the Hippie Trail in Goa). —T. Coraghessan Boyle, New Yorker, 14 Sep. 2025

For example, the most precise work is in a left lateral incisor, where the artisan’s cavity only penetrated the tooth’s enamel. —Andrew Paul, Popular Science, 28 Aug. 2025

These included back teeth, such as molars and premolars, as well as more frontal incisors and canines. —Elizabeth Rayne, ArsTechnica, 19 Aug. 2025

This level playing field has a prayer only if this new college sports commission has real incisors, and can actually enforce punishment when the violators are caught. —Fort Worth Star-Telegram, 31 July 2025

Word History

First Known Use

1666, in the meaning defined above

Rhymes for incisor

• adviser
• advisor
• devisor
• divisor
• franchisor
• quantizer
• reviser
• revisor
• advertiser
• analyser
• analyzer
• appetizer

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