Other forms: monomers
A monomer is a small molecule. When monomers connect to each other, they form a polymer, a chain of molecules.
Imagine a set of beads that snap together, and you'll have a good idea of how monomers interlock. You can think of each monomer (which include fatty acids and amino acids) as a building block for larger molecules. The word monomer contains the Greek roots mono-, "one," and meros, "part."