What is another word for monomer?

There isn't a single perfect synonym for "monomer," as it refers to a specific concept. However, depending on the context, you could use these alternatives:

General alternatives:

* Subunit: This is a very general term, referring to any smaller part that makes up a larger whole.

* Building block: This emphasizes the role of the monomer in creating a larger structure.

* Repeating unit: This emphasizes the fact that monomers can be repeated to form a larger structure.

More specific alternatives, depending on the type of monomer:

* Amino acid: If referring to monomers that form proteins.

* Nucleotide: If referring to monomers that form nucleic acids (DNA and RNA).

* Monosaccharide: If referring to monomers that form carbohydrates.

Ultimately, the best alternative will depend on the specific context of your writing.