quinquagenarian

quin·qua·ge·nar·i·an

 (kwĭng′kwə-jə-nâr′ē-ən)
n.
A person 50 years old, or in his or her fifties.
adj.
Of or characteristic of a person in his or her fifties.

[From Latin quīnquāgēnārius, containing fifty, from quīnquāgēnī, fifty each, from quīnquāgintā, fifty; see penkwe in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

quinquagenarian

(ˌkwɪŋkwədʒɪˈnɛərɪən)
n
a person between 50 and 59 years old
adj
1. being between 50 and 59 years old
2. of or relating to a quinquagenarian
[C16: from Latin quinquāgēnārius containing fifty, from quinquāgēnī fifty each]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

quin•qua•ge•nar•i•an

(ˌkwɪŋ kwə dʒəˈnɛər i ən, ˌkwɪn-)

n.
a person who is 50 years old or between 50 and 60.
[1560–70; < Latin quīnquāgēnāri(us) containing fifty quīnquāgēn(ī) fifty each]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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References in periodicals archive ?
As a fairly new member to the quinquagenarian club, I read with some dismay that my testosterone is diminishing day by day.
To his credit, the newly sworn-in quinquagenarian Chief Justice of Pakistan has also four books and scores of articles and research papers on diverse constitutional and legal issues.
Instead of worrying about the issues I've been trying to overcome for decades, I'm just going to change my attitude to them instead, because now that I'm a quinquagenarian, I can do what I like.
Steve Boal and Andy Wilson shot 24s for Thimbleby whileDuke of Wellington's newest quinquagenarian Paul Williamson shot a full house to celebrate.
I'm a quinquagenarian now, rather to my astonishment, and I still bring out the glove to toss the ball with our daughter, who humors the old man with a game of backyard catch in the high grass.
And try as he might to disguise his pretty boy looks behind bad clothes and straggly hair - a technique also favoured by his fellow quinquagenarian Brad Pitt and Marlon Brando decades before the pair of them - we know they are there just beneath the surface.
Future challenges in psychiatry from the reflections of a quinquagenarian. South African Journal of Psychiatry 2012;18(3):76-77.
Here are some of my favourites, which are rarely used but would enrich everyday conversation: QUINQUAGENARIAN A person who is aged 50 or between 50 and 60 years of age.
For local defense, the Germans had a motley mix: teenaged and quinquagenarian militiamen of the Volkssturm, a bridge security unit, an engineer company, Ost forces (Polish troops dragooned into the German army), Hitler Youth, and an anti-aircraft unit on the east bank.
Still a good three months away from celebrating his 51th birthday, the quinquagenarian adds, " Maybe this time around, I can hope to be good enough to be able to jam with my wife -- a trained classical singer."
BEST KNOWN FOR HER QUIRKY CHARACTERS like joyologist Helen Madden, Superstar spaz Mary Katherine Gallagher, and camel-toed quinquagenarian Sally O'Malley, Emmy-nominated Saturday Night Live veteran Molly Shannon mouths off on her latest role as foxy mama Kath opposite Selma Blair's Kim in Kath & Kim (premiering October 9 on NBC).
traits are still to be found in the quinquagenarian"; 1964a, 212;