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Poly means many and mer means parts.. So polymer means many parts.. The parts are usually the same part used repeatedly in a chain-like manner. Polymers are also referred to as plastics because they are easily molded.ature has many examples of polymers. Cotton fibers are made of sugar molecules that are repeated in a chain-like manner. Hair, wool, and other natural fibers are polymers. They are made by chaining one or two substances one after another.
The term polymer is derived from the Greek poly, meaning many, and mer, meaning parts  thus polymers are substances made of many parts. In most cases the parts are small molecules which react together hundreds, or thousands, or millions of times. molecule used in producing a polymer is a monomer  mono is Greek for single, thus a monomer is a single part. A polymer made entirely from molecules of one monomer is referred to as a homopolymer. Chains that contain two or more different repeating monomers are copolymers.