Pronunciation: (ok"tu-ju-nâr'ē-un), [key]
—adj. Also,oc•tog•e•nar•yPronunciation: (ok-toj'u-ner"ē). [key]
1. of the age of 80 years.
2. between 80 and 90 years old.
a person who is between 80 and 90 years old.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.