octanucleotide /(ŏk`tŭ*nū"klē*ō̇*tīd)/

oc·ta·nu·cle·o·tide

octanucleotide

n.
  1. A molecule composed of eight nucleotide units bound to each other by phosphodiester bonds in a linear array; as, a partial digest of DNA or RNA may include octanucleotides. See octamer. (Chem.)