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killer T cell

noun
1.
a killer cell that destroys target cells only when specifically activated by helper T cells.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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killer T cell in Science
killer T cell
  (kĭl'ər)   
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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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