A person who is from 80 to 89 years old: [as modifier]: his octogenarian mother-in-law
More example sentences
- His successor will, I'm sure, still be remembered with affection by many octogenarians.
- Mostly in their fifties, the banañeros suffer from kidney failure, diminishing eyesight and bones that are weakening at the rate of octogenarians.
- And when I read of the activities of many octogenarians, I think that relative to them I am still ‘middle-aged’.
early 19th century: from Latin octogenarius (based on octoginta 'eighty') + -an.
Definition of octogenarian in:
- The British & World English dictionary