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high-density polyethylene

noun, Chemistry.
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.
Abbreviation: HDPE.
Origin of high-density polyethylene
1955-60 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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