Definition

1. Noun:
   • A tooth for cutting or gnawing; located in the front of the mouth in both jaws: An incisor is a type of tooth with a sharp, chisel-shaped edge designed for cutting into food. Humans typically have eight incisors, located at the front of the mouth.

Usage

• The word "incisor" is a countable noun. It is most commonly used in singular or plural forms to refer to these specific front teeth in humans and many animals.
• It is used in general, medical, and biological contexts.

Examples

• Noun:
  • The dentist said my lower incisor has a small cavity.
  • Rabbits use their prominent incisors to gnaw on vegetables.
  • Humans have four incisors in the upper jaw and four in the lower jaw.

Advanced Usage

• "Incisor teeth": This phrase is sometimes used for emphasis or clarity, though "incisors" alone is sufficient.
  • The fossil showed well-preserved incisor teeth.

Variants and Related Words

• Incisal (adj): Pertaining to the cutting edge of an incisor or canine tooth.
  • The dentist examined the incisal surface for wear.

Synonyms

• Front tooth: A less specific, common term for a tooth at the front of the mouth, which includes incisors and sometimes canines.
• Cutter tooth: A descriptive term sometimes used in zoology or dentistry.

Antonyms

• Molar: A tooth with a broad surface for grinding, located at the back of the mouth.
• Canine: A pointed tooth located next to the incisors, used for tearing food.

Noun

1. a tooth for cutting or gnawing; located in the front of the mouth in both jaws