Definitions for quinquagenarianˌkwɪŋ kwə dʒəˈnɛər i ən, ˌkwɪn-
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Random House Webster's College Dictionary
quin•qua•ge•nar•i•anˌkwɪŋ kwə dʒəˈnɛər i ən, ˌkwɪn-(n.)
a person who is 50 years old or between 50 and 60.
Origin of quinquagenarian:
1560–70; < L quīnquāgēnāri(us) containing fifty quīnquāgēn(ī) fifty each
Wiktionary
quinquagenarian(Noun)
One who is between the age of 50 and 59, inclusive.
quinquagenarian(Adjective)
Being between the age of 50 and 59, inclusive.
quinquagenarian(Adjective)
Of or relating to a quinquagenarian.
Origin: From quinquagenarius, from quinquegeni, from quinquaginta
Citation
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"quinquagenarian." Definitions.net. STANDS4 LLC, 2013. Web. 18 May 2013. <http://www.definitions.net/definition/quinquagenarian>.