Ceramic refers to any of various hard, brittle, heat-resistant and corrosion-resistant materials made by shaping and then firing a nonmetallic mineral, such as clay, at a high temperature. Bricks, pipes, refractories, tableware, cookware and pottery products belong to this group.
In general, it's a solid material which is used to manufacture, for example, earthenware, porcelain, and brick. Also, it's called pottery. Making it is one of the most ancient human crafts which appeared several thousand years ago. Nowadays, most pottery products are manufactured at factories. But with the help of the best pottery wheel and some clay, you can make pots, jugs, amphoras on your own like days before.
Ceramic is a by product of clay subjected to high temperature.