Longman Dictionary of Contemporary English homepage

Date: 1600-1700
Language: Latin
Origin: , present participle of senescere 'to grow old', from senex; SENIOR1

senescent

 adjective
     
se‧nes‧cent technical
becoming old and showing the effects of getting older:
a senescent industry
—senescence noun [uncountable]
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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