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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.

As the body ages, it accumulates senescent cells, which no longer divide but also do not die off.

From Science Daily • Jan. 3, 2026

"Our hope is that senotherapy, which involves using medications to remove senescent, or aging cells, could potentially minimize the need for surgery and/or improve outcomes after surgery."

From Science Daily • Dec. 25, 2025

The number of senescent cells dropped by about 50%.

From Science Daily • Dec. 25, 2025

The students brought their concept to their advisors and to researcher Darren Baker, Ph.D., whose work centers on senescent cell therapies.

From Science Daily • Dec. 14, 2025

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

From "The Great Santini" by Pat Conroy