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octogenarian
oc·to·ge·nar·i·an [ òktə jə nérree ən ] (plural oc·to·ge·nar·i·ans)


noun 
Definition:
 
somebody in his or her eighties: somebody between 80 and 89 years of age
[Early 19th century. < Latin octogenarius< octoginta "eighty," literally "eight times ten"]
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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