Medical Dictionary


noun, often attributive \ˌsē-(ˌ)dē-ˈāt\

Medical Definition of CD8

  1. :  a glycoprotein found especially on the surface of cytotoxic T cells that usually functions to facilitate recognition by cytotoxic T cell receptors of antigens complexed with molecules of a class that are found on the surface of most nucleated cells and are the product of genes of the major histocompatibility complex

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