Adjective: octogenarian ,ók-tow-ji'neh-ree-un
- Being from 80 to 89 years old
"The octogenarian couple celebrated their 60th wedding anniversary"
Derived forms: octogenarians
See also: old
Type of: golden ager [N. Amer, informal], old person, oldster [N. Amer, informal], senior citizen
Encyclopedia: Octogenarian