CD8

noun, often attributive
\ ˌsē-(ˌ)dē-ˈāt How to pronounce CD8 (audio) \

Medical Definition of CD8

: 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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a usually brief trip or an expedition

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