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cytotoxic

British

/ ˌsaɪtəʊtɒkˈsɪsɪtɪ, ˌsaɪtəʊˈtɒksɪk /

adjective

poisonous to living cells: denoting certain drugs used in the treatment of leukaemia and other cancers

"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

Other Word Forms

cytotoxicity

noun

Example Sentences

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cytotoxic

When the body faces infection or cancer, cytotoxic T lymphocytes bind tightly to their target and form the immune synapse.

From Science Daily ● Apr. 30, 2026

The drug, daraxonrasib, showed improvements in survival and success compared with standard-of-care cytotoxic chemotherapy in patients with metastatic pancreatic ductal adenocarcinoma who had been previously treated.

From Barron's ● Apr. 13, 2026

Single-cell analyses show an unusual expansion of cytotoxic CD4+ T cells that behave more like CD8+ immune cells.

From Science Daily ● Jan. 8, 2026

Checkpoint inhibitor therapies, for example, aim to release the blockade of fully differentiated cytotoxic T cells and "switch them back on."

From Science Daily ● Apr. 24, 2024

They found that treatment with Agent Orange and its constituents caused changes in the brain tissue corresponding to brain cell degeneration, and molecular and biochemical abnormalities indicative of cytotoxic injury, DNA damage and other issues.

From Science Daily ● Feb. 14, 2024

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023