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Adjective: octogenarian  ,ók-tow-ji'neh-ree-un
  1. Being from 80 to 89 years old
Noun: octogenarian  ,ók-tow-ji'neh-ree-un
  1. Someone whose age is in the eighties

Derived forms: octogenarians

See also: old

Type of: golden ager, old person, oldster [N. Amer], senior citizen

Encyclopedia: Octogenarian