What is meant by milk teeth?

Milk teeth:

1. Babies are born toothless as their primary source of food is the mother’s milk.
2. Deciduous teeth (milk teeth) are the first set of teeth to develop in a human's oral cavity.
3. As the babies start to wean, deciduous teeth gradually start to appear.
4. There are typically 20 milk teeth-10 upper and 10 lower.
5. Milk teeth get replaced by permanent teeth completely between the ages of six to twelve.