NK


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NK

Abbreviation for natural killer cells , under cell.
Farlex Partner Medical Dictionary © Farlex 2012

neurokinin

(noor″ō-kī′nĭn) [ neuro- + kinin],

NK

Any of a group of neuropeptides found in the central nervous system that stimulate nerve receptors and cause smooth muscle contraction, blood pressure reduction, and bronchoconstriction.
Medical Dictionary, © 2009 Farlex and Partners