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

This injury split a lower front incisor lengthwise and even rotated some teeth inward. — Andrew Paul, Popular Science, 15 Oct. 2026

His tongue tended to home in on the pocket behind his upper right incisors. — Tom Drury, Harpers Magazine, 29 Sep. 2026

Ethan pulls up to their lush, hillside home in a new car, sleek shades, and pointy incisors glistening in the sunlight. — Siddhant Adlakha, IndieWire, 17 Sep. 2026

The crew then floored the car, taking McGhehey's incisor with it. — Sezin Devi Koehler, Entertainment Weekly, 26 June 2026

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