Chemical compound

Wiktionary Word definitions in Wiktionary
n. An oligomer having five subunits

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
oligomer \o*lig"o*mer\, n. (Chem.) 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 ...

Wikipedia Word definitions in Wikipedia
A pentamer is an entity composed of five sub-units . In chemistry, it applies to molecules made of five monomers . In biochemistry, it applies to macromolecules, in particular to pentameric proteins , made of five proteic sub-units. In microbiology, a pentamer ...