Define the term polymerization.
Polymerization is a process of formation of polymers (macromolecules) by joining of several monomers by covalent bonds.
For example n (CH2=CH2)Polymerization−−−−−−−−−→ (CH2−CH2)n
n ethene(Monomer)Polymerization−−−−−−−−−→Polythene(Polymer)