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Từ điển Oxford Learners Wordfinder Dictionary
helper cell
T cell with CD4 receptor that recognizes antigens on the surface of a virus-infected cell and secretes lymphokines that stimulate B cells and killer T cells; helper T cells are infected and killed by the AIDS virus • Syn: helper T cell, CD4 T cell, CD4 cell • Hypernyms: T cell, T lymphocyte
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