Definitions for: Nonagenarian

[n] someone whose age is in the nineties
[adj] being from 90 to 99 years old; "the nonagenarian inhabitants of the nursing home"

Webster (1913) Definition: Non`a*ge*na"ri*an, n. [L. nonagenarius
containing, or consisting of, ninety, fr. nonageni ninety
each; akin to novem nine.]
A person ninety years old.

Synonyms: old

See Also: old person, oldster, senior citizen