Polymer - A high-molecular-weight
organic compound, natural or synthetic, whose structure
can be represented by a repeated small unit, the mer;
e.g., polyethylene, rubber, cellulose. Synthetic polymers
are formed by addition or condensation polymerization
of monomers. If two or more monomers are involved, a
copolymer is obtained. Some polymers are elastomers,
some plastics.
