-
- To save this word, you'll need to log in.
killer T cell
noun
variants
or less commonly killer T lymphocyte
plural killer T cells also killer T lymphocytes
: cytotoxic t cell
The antigen receptors of killer T cells allow them to recognize the viral peptides, which signal that a cell must be destroyed as unhealthy.—Harald von Boehmer et al.
A subset of lymphocytes known as killer T cells may also respond to the envelope protein by destroying infected cells.—William A. Haseltine et al.
Examples of killer T cell in a Sentence
Recent Examples on the Web
Something about this shape made the HLA-HIV combination on infected cells in elite controllers extraordinarily good for being seen by killer T cells, which then destroyed the infected cell.
—Bruce D. Walker, Scientific American, 1 July 2012
In a recent study published in the journal Immunity, Wherry and colleagues found that in healthy people with no prior COVID-19 infection, helper T cells rose after the first dose and killer T cell counts rose after the second dose of either the Moderna or Pfizer-BioNTech vaccine.
—Miriam Fauzia, USA TODAY, 27 Sep. 2021
New research suggests that a malfunctioning member of the patient’s own immune system called a killer T cell may be one of the culprits.
—John Chang, The Conversation, 21 Aug. 2020
Despite its numerous mutations, omicron can trigger a strong killer T cell response.
—Mitzi Nagarkatti, The Conversation, 27 Jan. 2022
One way to reverse killer T cell exhaustion is to block the PD-1 off switch, but this does not boost the immune system’s response to the virus.
—Bhrugu Yagnik, The Conversation, 29 Sep. 2021
Even if a larger study confirmed that masturbating increases natural killer T cell levels, that alone doesn't say much.
—Mirel Zaman, refinery29.com, 23 Nov. 2020
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Word History
First Known Use
1971, in the meaning defined above
Dictionary Entries Near killer T cell
Cite this Entry
“Killer T cell.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/killer%20T%20cell. Accessed 22 Nov. 2024.
Kids Definition
killer T cell
noun
: a T cell that binds to and destroys cells (as one infected by a virus) which display specific antigens on their surface
Medical Definition
More from Merriam-Webster on killer T cell
Britannica.com: Encyclopedia article about killer T cell
Love words? Need even more definitions?
Merriam-Webster unabridged
Share