Plastics are a wide range of synthetic or semisynthetic materials composed primarily of polymers. Their defining characteristic, plasticity, allows them to be molded, extruded, or pressed into a …

plastic, polymeric material that has the capability of being molded or shaped, usually by the application of heat and pressure.

1 day ago · For the average person, trying to avoid plastics can feel overwhelming—and maybe pointless. Our writer asked two experts how they navigate our plastic-filled world.

Oct 31, 2025 · Plastic products are generally versatile, durable and lightweight. Plastic products are prominent in the construction, transportation, and packaging industries. Plastic innovations …

Plastic is a word that originally meant “pliable and easily shaped.” It only recently became a name for a category of materials called polymers. The word polymer means “of many parts,” and …

The meaning of PLASTIC is a plastic substance; specifically : any of numerous organic synthetic or processed materials that are mostly thermoplastic or thermosetting polymers of high …

Aug 19, 2025 · Plastic coverage from Scientific American, featuring news and articles about advances in the field.