orthopedics

Examples and usage:

1. He is an expert in plastic surgery.

He is a plastic surgeon.

Plastics are often used today.

Plastics are commonly used materials nowadays.

It is the plasticity of plastic at a certain temperature that gives it the main advantages over many other materials.

It is the plasticity of plastic at a certain temperature that makes it superior to many other materials.

Plastics are widely used in many aspects: on the one hand, plates, on the other hand, machine parts.

Plastics have many uses: tableware is one of them, and machine parts are another.