The process of forming a larger molecule from its monomer is called polymerization.

Here's a breakdown:

* Monomers: Small, repeating units that make up larger molecules.

* Polymers: Large molecules made up of many repeating monomer units.

* Polymerization: The chemical process where monomers are joined together to form polymers.

This process usually involves the removal of a water molecule (dehydration synthesis) or the addition of a water molecule (hydrolysis).