Definition

A type of plastic that is hard and can be shaped into different forms, often used for making containers, insulation, and packaging materials.

Example

The cups were made of polystyrene, making them lightweight and easy to carry.

Conversation

Have you ever heard of polystyrene?

Yeah, I think it's that material used in packaging, right?

Exactly! It's also used for insulation in refrigerators.

That's interesting! I didn't know it had so many uses.

Synonyms & Antonyms

Root Explanation

Polystyrene is formed from "poly-" (meaning many) and "styrene" (derived from Greek "styrenos", meaning from styrax, a type of tree resin). The word refers to a synthetic polymer made from many styrene units.

Memory Tip

Think of 'many' ('poly-') units coming together from a tree resin ('styrene') to form polystyrene, which is a common plastic material.

Visually Confused Words