#siloxane  any of a large class of compounds that have alternate silicon and oxygen atoms
  supertype:  #chemical_compound__compound  (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
  subtype:  #silicone_polymer__silicone  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
     subtype:  #bouncing_putty  a soft elastic silicone polymer that increases in elasticity with the application of force; used in the center of golf balls and as shock-absorbent padding

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