polymer of ethylene, 1862, from French polyéthylène; see poly- + ethylene. Related: Polyethylenic (1860).
polyethylene in Science
polyethylene
(pŏl'ē-ěth'ə-lēn') Any of various artificial resins consisting of many ethyl groups (CH2CH2) joined end to end or in branched chains. Polyethylenes are easily molded and are resistant to other chemicals. They can be repeatedly softened and hardened by heating and cooling, and are used for many purposes, such as making containers, tubes, and packaging.