A person 90 years old or between 90 and 100 years old.
A nonagenarian person.
90 years old, or between the ages of 90 and 100
Of or relating to a nonagenarian.
Origin of nonagenarian
From American Heritage Dictionary of the English Language, 5th Edition
- From Latin nōnāgÄ“nārius (“of the number ninety") (from nonageni (“ninety each"), from nonaginta (“ninety"), from nona- (akin to novem (“nine")) + -ginta (akin to viginti (“twenty")), + -arius) +"Ž -an