In biochemistry|lang=en terms the difference between oligopeptide and nociceptin
is that oligopeptide is (biochemistry) a peptide containing a relatively small number of amino acids while nociceptin is (biochemistry) an neuralogically-active oligopeptide related to the opioids.
As nouns the difference between oligopeptide and nociceptin
is that oligopeptide is (biochemistry) a peptide containing a relatively small number of amino acids while nociceptin is (biochemistry) an neuralogically-active oligopeptide related to the opioids.