A large molecule synthesized from many monomers is called a polymer.

Here's a breakdown:

* Monomer: A small, repeating molecule. Think of it as a building block.

* Polymer: A large molecule made up of many monomers linked together.

Some common examples of polymers include:

* Proteins: Made from amino acid monomers.

* Carbohydrates: Made from sugar monomers.

* DNA and RNA: Made from nucleotide monomers.

* Plastics: Made from various synthetic monomers.