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polypropylene

[pol-ee-proh-puh-leen] /ˌpɒl iˈproʊ pəˌlin/
noun, Chemistry
1.
a plastic polymer of propylene, (C 3 H 5) n , used chiefly for molded parts, electrical insulation, packaging, and fibers for wearing apparel.
Origin
1930-1935
1930-35; poly- + propylene
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for poly propylene

polypropylene

/ˌpɒlɪˈprəʊpɪˌliːn/
noun
1.
any of various tough flexible synthetic thermoplastic materials made by polymerizing propylene and used for making moulded articles, laminates, bottles, pipes, and fibres for ropes, bristles, upholstery, and carpets Systematic name polypropene
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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poly propylene in Science
polypropylene
  (pŏl'ē-prō'pə-lēn')   
  1. Any of various thermoplastic resins that are polymers consisting of repeated branched units derived from propane and having the formula CH2CH(CH3), usually with the methane groups (CH3) all on one side of the chain. Polypropylenes are similar to polyethylenes but are harder and tougher and are used to make molded articles and fibers.

  2. A fabric of fibers made from any of these resins.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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