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One entry found for T cell.
Main Entry: T cell
Function: noun
: any of several lymphocytes (as a helper T cell) that differentiate in the thymus, possess highly specific cell-surface antigen receptors, and include some that control the initiation or suppression of cell-mediated and humoral immunity (as by the regulation of T and B cell maturation and proliferation) and others that lyse antigen-bearing cells -- called also T lymphocyte -- see CYTOTOXIC T CELL, HELPER T CELL, SUPPRESSOR T CELL, T4 CELL

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