noun, plural: dimers
A chemical compound composed of two identical or similar (not necessarily identical) subunits or monomers.
To come together (of two similar subunits) to form a chemical compound.
Dimers are linked together by a chemical bond. They may be heterodimers or homodimers depending on the nature of subunits forming a compound.
Word origin: Ancient Greek dis (twice) + Ancient Greek meros (part)