One of the hard, calcified structures set in the jaws of many vertebrates, used for biting and chewing. noun
The dentist said I have a cavity in my molar tooth.
She lost a tooth while playing soccer.
A projection resembling or functioning as a tooth, such as the cogs on a gear or the notches on a saw. noun
The gears interlock with each other through their teeth.
The saw's teeth need to be sharpened for better cutting.
An appetite or liking for a particular kind of food or drink. noun
He has a sweet tooth and loves chocolate.
After dinner, she always craves something sugary because of her sweet tooth.