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Meaning of high-density polyethylene

high'-den'sity polyeth'ylene

Pronunciation: [key]
— Chem. Chem.
  1. polyethylene consisting mainly of linear, or unbranched, chains with high crystallinity and melting point, and density of 0.96 or more, produced at low pressure and used chiefly for containers and articles made by injection molding. Abbr.: HDPE&hasp;&hasp; Cf. low-density polyethylene.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.