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Definitions

malignant

[muh-lig-nuhnt] / məˈlɪg nənt /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Earlier this year, he disclosed that surgeons had successfully removed what he described as a "small, early-stage malignant tumour" from his prostate.

From Barron's • Jun. 10, 2026

Glioblastoma is the most common malignant brain tumor in adults.

From BBC • May 13, 2026

CAR-T therapy engineers a patient’s own T cells to target and destroy malignant cells, while checkpoint inhibitors remove the immune system’s brakes that tumors use to evade attack.

From The Wall Street Journal • Apr. 19, 2026

After a week getting steroids and pain medicine at Providence St. John’s Medical Center in Santa Monica, he received the biopsy results: an extremely aggressive malignant mass was blocking blood flow to Duong’s optic nerve.

From Los Angeles Times • Mar. 30, 2026

And by freezing cells at various points, they believed they could see the actual moment when a normal cell growing in culture became malignant, a phenomenon they called spontaneous transformation.

From "The Immortal Life of Henrietta Lacks" by Rebecca Skloot




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