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from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Any of various large differentiated T cells that recognize and lyse target cells bearing a specific foreign antigen, usually by infection with a virus, and that also function in defense against cancer cells. Also called cytotoxic T cell, killer T cell.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. T cell with CD8 receptor that recognizes antigens on the surface of a virus-infected cell and binds to the infected cell and kill it


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