killer cell
any of several types of lymphocyte or leukocyte capable of destroying cells that have acquired foreign characteristics, as a tumor cell or virus-infected cell.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use killer cell in a sentence
When it encounters a real infection, the entire immune military of trained antibodies and killer cells can then rapidly spur to life, nixing the invader before they have a chance to spread or reproduce.
Fighting Covid-19 Brought These Lasting Breakthroughs to Science and Medicine | Shelly Fan | December 29, 2020 | Singularity HubSo if you’re in a good mood, and your serotonin levels are healthy, that’s going to produce T cells and natural killer cells, which are like the James Bond of the immune system.
British Dictionary definitions for killer cell
a type of white blood cell that is able to kill cells, such as cancer cells and cells infected with viruses
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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