Author: Glossary

  • Nanoscale

    To objects approx. 1 nanometer (nm) in size, i.e., about the size of an atom.  

  • Nanophyetus

    Any species of parasitic flatworms (“flukes”) that live in freshwater fish. They may infest humans who consume raw, smoked, or partially cooked salmon and steelhead. Characteristic symptoms include nausea, vomiting, and abdominal pain.  

  • Nanocormia

    Abnormal smallness of thorax or body.  

  • Nanobacteria

    The smallest known bacteria with intact gram-negative cell walls. These microbes produce biologically available apatite crystals that mineralize into structures similar to those found in kidney stones. The organisms have been isolated from nearly all kidney stones and are suspected of being a causative agent in stone formation.  

  • Naloxone hydrochloride

    A drug that is antagonistic to the actions of narcotics and opiates such as morphone, methadone, and opium. It is helpful in reversing the respiratory depression caused by an overdose of the narcotics.  

  • Nalorphine hydrochloride

    A narcotic antagonist used in the treatment of narcotic overdose.  

  • Naja

    The scientific name of the group of venomous snakes, native to Africa, India, Asia, and Australia, commonly known as cobras. Their venom contains tissue-destroying enzymes that cause local necrosis at the site of a bite and produce cardiotoxic and neurotoxic polypeptides.  

  • Nairovirus

    A genus of RNA viruses that includes the causative agent of Crimean-Congo hemorrhagic fever.  

  • Spoon nail

    A nail with a depressed center and elevated lateral edges. This condition may follow trauma to the nail fold or iron deficiency anemia or may develop naturally.  

  • Intramedullary nail

    A surgical rod inserted into the intramedullary canal to act as an immobilization device to hold the two ends of a fractured long bone in position. A surgical rod inserted into the intramedullary canal to act as an immobilization device to hold the two ends of a fractured long bone in position.