from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A polymer that consists of two, three, or four monomers.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A compound intermediate between a monomer and a polymer, normally having a specified number of units between about five and a hundred.
from the GNU version of the Collaborative International Dictionary of English
- n. A molecule composed of a small number of linked monomer units; a short polymer; -- compounds called oligomers have less than one hundred monomer units and usually less than thirty. Oligomers of increasing length are called dimer, trimer, tetramer, pentamer, hexamer, heptamer, octamer, nonamer, decamer, etc. In colloquial laboratory jargon, they may also be referred to as nine-mer, ten-mer, eleven-mer, twelve-mer, etc., especially for oligomers of greater than eight units.
oligo- + -mer (Wiktionary)