Octogenarian

[,ɒktə(ʊ)dʒɪ'neərɪən] or ['ɑktədʒə'nɛrɪən]

(noun.) someone whose age is in the eighties.

(adj.) being from 80 to 89 years old .

Checker: Wade--From WordNet

(n.) A person eighty years, or more, of age.

Edited by Julia

n. and adj. one who is eighty years old or between eighty and ninety.—adj. Octog′enary.

Inputed by Joanna