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Definitions

senescent

[si-nes-uhnt] / sɪˈnɛs ənt /


ADJECTIVE
obsolescent
Synonyms




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.

However, many tumors also contain senescent cells, which no longer divide but remain highly active in harmful ways.

From Science Daily • May 13, 2026

These cells, known as senescent cells, survive in a fragile state by producing large amounts of a protective protein that keeps them from dying.

From Science Daily • May 13, 2026

They found that the same senescent macrophage signature was significantly higher in diseased livers than in healthy ones.

From Science Daily • Apr. 16, 2026

In the brain, for example, microglia, which are the macrophages of the central nervous system, may become senescent in conditions like Alzheimer's disease as they encounter large amounts of cellular debris.

From Science Daily • Apr. 16, 2026

In one thin arm, threaded with veins in a kind of senescent bas-relief, was a basket.

From "The Great Santini" by Pat Conroy




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