A polymer that is made from two, three, or four monomers.
A compound intermediate between a monomer and a polymer, normally having a specified number of devices between about five and 100.
A molecule made up of a small number of linked monomer devices; a brief polymer; -- compounds called oligomers have significantly less than a hundred monomer products and often lower than thirty. Oligomers of increasing length are known as dimer, trimer, tetramer, pentamer, hexamer, heptamer, octamer, nonamer, decamer, etc. In colloquial laboratory jargon, they may be named nine-mer, ten-mer, eleven-mer, twelve-mer, etc., especially for oligomers of more than eight units.