- a compound of high molecular weight derived either by the addition of many smaller molecules, as polyethylene, or by the condensation of many smaller molecules with the elimination of water, alcohol, or the like, as nylon.
- a compound formed from two or more polymeric compounds.
- a product of polymerization.
- a naturally occurring or synthetic compound, such as starch or Perspex, that has large molecules made up of many relatively simple repeated units
