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killer T cell

noun
  1. a killer cell that destroys target cells only when specifically activated by helper T cells.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

killer t cell in Science

killer T cell

[kĭlər]
  1. A large differentiated T cell that functions in cell-mediated immunity by attacking and lysing target cells that have specific surface antigens. Also called cytotoxic T cell killer cell
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.