: relating to, characterized by, or associated with the state of being old or the process of aging : marked by or undergoing senescence
The "sandwich generation"—caught between adolescent children and senescent parents …—The Economist
… researchers have opened up a novel approach to combating the effects of aging with the discovery that a special category of cells, known as senescent cells, are bad actors that promote the aging of the tissues.—Nicholas Wade
Examples of senescent in a Sentence
Recent Examples on the WebIf the cells were truly senescent, then the medications should both reduce the number of senescent cells and reverse many of the structural DNA changes and gene expression disruptions.—Megan Molteni, STAT, 9 Jan. 2022
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'senescent.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
borrowed from Latin senēscent-, senēscens, present participle of senēscere "to grow old, age, deteriorate, slacken off, be in decline," from sen-, senex "old, aged, old man" + -ēsc-, suffix of inchoative verbs — more at senior entry 2