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Definition of: octogenarian
(ok′tə·jə·nâr′ē·ən) adjective
Being eighty or from eighty to ninety years of age: also oc·tog·e·nar·y (ok·toj′ə·ner′ē).
—noun A person between eighty and ninety years of age. [<L octogenarius <octogeni eighty each <octoginta eighty]
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