Nonagenarian Definition
nŏnə-jə-nârē-ən, nōnə-
nonagenarians
noun
A person 90 years old or between 90 and 100 years old.
American Heritage
A nonagenarian person.
Webster's New World
One who is between the age of 90 and 99, inclusive. One who is in his or her tenth decade.
Wiktionary
adjective
90 years old, or between the ages of 90 and 100
Webster's New World
Being between the age of 90 and 99, inclusive. In one's tenth decade.
Wiktionary
Of or relating to a nonagenarian.
Wiktionary
Other Word Forms of Nonagenarian
Noun
Singular:
nonagenarian
Plural:
nonagenariansOrigin of Nonagenarian
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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
From Wiktionary
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From Latin nōnāgēnārius from nōnāgēnī ninety each from nōnāgintā ninety nōnus ninth nona– -gintā ten times dekm̥ in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition
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