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The terms polymer and monomer were derived from the Greek roots poly (many), mono (one) and meros (part/section).1Polymer means huge molecule(103-107U)containing higher molecular masses and many simple molecules combined.In general polymer is represented by the name of macromolecules.The simple unit or molecule which is repeated many times in the polymer is known asmonomer.Such simple unit or active molecules are joine togherr with each other in large amount by covalent bond and form a huge molecule(polymer).this process is called polymerization.