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CD4

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WordReference Random House Unabridged Dictionary of American English © 2026

CD4, n.

Cell Biologya protein on the surface of T cells and other cells, functioning as a receptor for the AIDS virus antigen.

c(luster of) d(ifferentiation) 4 1980–85

CD4, n.

Cell Biologya protein on the surface of T cells and other cells, functioning as a receptor for the AIDS virus antigen.

c(luster of) d(ifferentiation) 4 1980–85

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