What do a.m. and p.m. stand for?


[puh-lim-er-uh-zey-shuh n, pol-uh-mer-] /pəˌlɪm ər əˈzeɪ ʃən, ˌpɒl ə mər-/
noun, Chemistry
the act or process of forming a polymer or polymeric compound.
the combination of many like or unlike molecules to form a more complex product of higher molecular weight, with elimination of water, alcohol, or the like (condensation polymerization) or without such elimination (addition polymerization)
the conversion of one compound into another by such a process.
Origin of polymerization
1875-80; polymerize + -ation Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for polymerization
  • It had solidified into a smooth, slippery white powder as the result of its molecules bonding, a process known as polymerization.
  • Using a glazing medium for acrylic can mitigate the effects of this, and it will help preserve the polymerization.
  • Then radiation polymerization, grafting, and crosslinking by e-beam or gamma sterilization.
British Dictionary definitions for polymerization


/pəˌlɪməraɪˈzeɪʃən; ˌpɒlɪməraɪ-/
the act or process of forming a polymer or copolymer, esp a chemical reaction in which a polymer is formed
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for polymerization

1866, from polymer + -ization.

Online Etymology Dictionary, © 2010 Douglas Harper
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polymerization in Medicine

polymerization po·lym·er·i·za·tion (pə-lĭm'ər-ĭ-zā'shən, pŏl'ə-mər-)

  1. The bonding of two or more monomers to form a polymer.

  2. A chemical process that effects this bonding.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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