as in senility
technical + formal
the state of being old or the process of becoming old
premature senescence
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Recent Examples of senescence
Further experiments revealed that the extracellular vesicles stopped senescence by using the extracellular matrix protein fibronectin, which coats their surfaces and then causes a release of enzymes that block the effects of oxidative stress which unleash senescence.
—
New Atlas,
4 Jan. 2026
Or, the first generation simply declined from senescence and the debilitating effects of power long exercised without check.
—
Eliot A. Cohen,
The Atlantic,
4 Jan. 2026
An early step in leaf senescence is formation of what’s called the abscission layer — a corky layer of cells that forms where the leaf petiole eventually detaches from the branch.
—
Paul Cappiello,
Louisville Courier Journal,
14 Nov. 2025
Nanoparticle delivery of innate immune agonists combined with senescence-inducing agents promotes T cell control of pancreatic cancer.
—
Hannah Millington,
MSNBC Newsweek,
10 Oct. 2025
See All Example Sentences for senescence
New Atlas,
4 Jan. 2026
Or, the first generation simply declined from senescence and the debilitating effects of power long exercised without check.
—
Eliot A. Cohen,
The Atlantic,
4 Jan. 2026
An early step in leaf senescence is formation of what’s called the abscission layer — a corky layer of cells that forms where the leaf petiole eventually detaches from the branch.
—
Paul Cappiello,
Louisville Courier Journal,
14 Nov. 2025
Nanoparticle delivery of innate immune agonists combined with senescence-inducing agents promotes T cell control of pancreatic cancer.
—
Hannah Millington,
MSNBC Newsweek,
10 Oct. 2025
See All Example Sentences for senescence
Recent Examples of Synonyms for senescence
Noun
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Then the interview happens, and Thomas is swinging between lucidity and senility, and a million things about their relationship come up, and the fiction records the interview the phone couldn’t capture.
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Is Chuck Schumer headed down the same dark treadmill to senility pioneered by Dementia Joe Biden before him?
Noun
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At age 34, this very well could be the final World Cup for the 2014 Golden Boot winner at the competition.
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Their age wasn't immediately known.
Noun
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Far from being a sign of dotage, scientists concurred, music practice in old age confers all kinds of cognitive benefits.
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In his basketball dotage, Kyle Lowry is getting soft.
Noun
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In Colima city for coffee and a nice meal, visitors should bookmark Puerto Café and Cumbre, a restaurant and bakery that stands out in a scene of growing maturity and ambition.
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Now that is maturity, not throwing a fit because Joe is around.
Cite this Entry
“Senescence.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/senescence. Accessed 29 Jun. 2026.
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