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English definition of “nonagenarian”

nonagenarian

noun [C] uk   /ˌnɒn.ə.dʒəˈneə.ri.ən/ us    /ˌnɑː.nə.dʒəˈner.i-/
a person who is between 90 and 99 years old
nonagenarian
adjective uk   us  
(Definition of nonagenarian from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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