monomer
/ˈmɒnəmər/Definitions
1. noun
A small molecule that can be joined together with other identical molecules to form a polymer.
“The research focused on the properties of the monomer before it was polymerized.”
2. noun
A single unit of a chemical compound that can be combined with other units to form a larger compound.
“The monomer was combined with other units to form a larger molecule with unique properties.”