from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun Any of a large group of oligomers and polymers based on the structural unit R2SiO, where R is an organic group, characterized by wide-range thermal stability, high lubricity, extreme water repellence, and physiological inertness and used in adhesives, lubricants, protective coatings, paints, electrical insulation, synthetic rubber, and prosthetic replacements for body parts.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun chemistry Any of a class of inert, semi-inorganic polymeric compounds (polysiloxanes), that have a wide range of thermal stability and extreme water repellence, used in a very wide range of industrial applications, and in prosthetic replacements for body parts

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun any of a large class of siloxanes that are unusually stable over a wide range of temperatures; used in lubricants and adhesives and coatings and synthetic rubber and electrical insulation


from Wiktionary, Creative Commons Attribution/Share-Alike License

silicon + -one. Originally obtained by the attempted synthesis of the silicon equivalent of a ketone.



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  • Implants made from silicones include breast implants (controversial in Europe in January 2012 because some were filled with unapproved silicone gel), replacement tear ducts and prosthetic testicles (silicojones?).

    January 6, 2012

  • silicojones!!! Hah! Brilliant!

    January 6, 2012