Meaning & Definition of word "Tooth"

noun:

• 1. A hard, bony structure in the jaws of vertebrates, used for biting and chewing food.
  • Example: She went to the dentist to get her tooth checked for cavities.
• 2. One of the small, hard, conical or flat structures that make up the biting or grinding surfaces of the jaws.
  • Example: The shark has sharp, serrated teeth for catching prey.
• 3. A projecting part or sharp point on an object or structure.
  • Example: The saw has several teeth that help cut through wood.
• 4. The characteristic of a gear that allows it to interlock with another gear.
  • Example: The mechanical engineer explained how the teeth of the gears work together to transmit power.
• 5. A specific unit of a structure, such as a cog or gear.
  • Example: He replaced a broken tooth on the machine's gear system.