- Natural killer cells (NK cells)search for term
A type of lymphocyte. Like cytotoxic T cells, NK cells attack and kill tumour cells and protect against a wide variety of infectious microbes. They are "natural" killers because they do not need additional stimulation or need to recognize a specific antigen in order to attack and kill. Persons with immunodeficiencies such as those caused by HIV infection have a decrease in natural killer cell activity.
- Non-nucleoside reverse transcriptase inhibitor (NNRTI)search for term
A class of antiretroviral drugs, for example, Nevirapine
- Nosesearch for term
Part of the human body used for smelling
- Nucleoside reverse transcriptase inhibitors (NRTI)search for term
A class of anti- retroviral drugs, for example, Retrovir (AZT)