+A **dimer** is a molecular structure composed of two identical or similar [Monomer](/wiki/monomer) units linked together. This union, often a [Chemical Bond](/wiki/chemical_bond), forms a new entity with distinct properties, vital in fields from biology to materials science.
+## See also
+- [Polymer](/wiki/polymer)
+- [Oligomer](/wiki/oligomer)
+- [Dimerization](/wiki/dimerization)