obsoletion

noun
ob·​so·​le·​tion | \ˌäbsəˈlēshən\
plural obsoletions

Definition of obsoletion 

: the act of becoming or condition of being obsolete

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History and Etymology for obsoletion

obsolete entry 1 + -ion

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Dictionary Entries near obsoletion

obsolescence

obsolescent

obsolete

obsoletion

obsoletism

obsr

obstacle

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