What is the process called when two monomers join to form a dimer?

The process when two monomers join to form a dimer is known as dimerization. Dimerization specifically refers to the chemical reaction that leads to the formation of a dimer, which is a molecule composed of two identical or similar subunits (monomers).

While polymerization involves the linking of many monomers to create larger molecules known as polymers, it encompasses a broader scope than just dimerization. Hydrolysis, on the other hand, is the process of breaking down polymers into monomers with the addition of water and is not relevant to the formation of dimers. Condensation, also known as dehydration synthesis, refers to the type of reaction that occurs when monomers join together, typically resulting in the release of water. Although condensation can lead to dimerization, the specific term for the reaction that produces a dimer is dimerization itself, making it the most accurate choice in this context.