Definition of obsolescent

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< obsolesce

obsolete >

ob·so·les·cent

(

-l

nt) KEY

ADJECTIVE:

Being in the process of passing out of use or usefulness; becoming obsolete.
Biology Gradually disappearing; imperfectly or only slightly developed. Used of an organ or other part of an animal or plant.

ETYMOLOGY:
Latin obsolscns, obsolscent- present participle of obsolscere, to fall into disuse : ob-, away ; see ob- + solre, to be accustomed to

OTHER FORMS:
obso·lescence(Noun), obso·lescent·ly(Adverb)

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