Polyethylene

Part of speech: noun

Definitions

1. A synthetic polymer made from ethylene that serves as a common material in packaging due to its strength and adaptability in various forms
2. This material, derived from petroleum, is frequently employed in the production of diverse items including containers and films due to its lightweight properties
3. A versatile synthetic compound produced from the polymerization of ethylene, commonly utilized for its durability and flexible applications in industry and packaging

Etymology: Polyethylene is a compound built from "poly-", the Greek "polús" meaning "many", and "ethylene", so its name simply means "many ethylenes". The "ethylene" part is itself a chemist's construction. It joins "ethyl", a name formed in German from "ether" and the Greek "hūlē", meaning "wood" or "matter", with the suffix "-ene" that chemists use for molecules containing a carbon-carbon double bond. "Ether" traces back through Latin "aether" to the Greek "aithēr", the upper, bright air above the earth, a sense that connects to the Greek verb "aithō", "to burn" or "to shine". The name describes the chemistry exactly. Ethylene molecules link end to end into long chains, and the many repeated units give the material its strength and flexibility. Because the word is a modern technical coinage built from classical parts, not an ancient term, its meaning was fixed by the structure of the molecule rather than by any older usage.