- (uncountable) Plastic is a stiff but usually somewhat flexible man-made material, usually made using a hydrocarbon-based polymer.
- Any similar artificial material.
- (slang) Credit or debit cards that are used in place of cash to buy things.
- Made of plastic.
- We're throwing out too many plastic water bottles.
- Someone or something that is able to adapt to different conditions may be called plastic.
- ecologically plastic animals