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senescent

[ si-nes-uhnt ]
/ sɪˈnɛs ənt /
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See synonyms for: senescent / senescence on Thesaurus.com

adjective
growing old; aging.
Cell Biology. (of a cell) no longer capable of dividing but still alive and metabolically active.
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Origin of senescent

First recorded in 1650–60; from Latin senēscent- (stem of senēscēns ) present participle of senēscere “to grow old,” equivalent to sen- “old” + -ēscent- -escent

OTHER WORDS FROM senescent

se·nes·cence, nounun·se·nes·cent, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use senescent in a sentence

British Dictionary definitions for senescent

senescent
/ (sɪˈnɛsənt) /

adjective
growing old
characteristic of old age

Derived forms of senescent

senescence, noun

Word Origin for senescent

C17: from Latin senēscere to grow old, from senex old
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for senescent

senescent
[ sĭ-nĕsənt ]

adj.
Growing old; aging.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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