cytotoxic T cell(redirected from killer T cell)
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Related to killer T cell: Cytotoxic T lymphocytes
cytotoxic T cell[¦sīd·ə‚täk·sik ′tē ‚sel]
A type of T cell which protects against pathogens that invade host cell cytoplasm, where they cannot be bound by antibodies, by recognizing and killing the host cell before the pathogens can proliferate and escape.