Pronunciation: (kwing"kwu-ju-nâr'ē-un, kwin"-), Strict Standards: Non-static method FenSites::linkTo() should not be called statically in /site/html/dictionary/quinquagenarian.html on line 77 [key]
1. 50 years of age.
2. between the ages of 50 and 60.
a person who is 50 years old or whose age is between 50 and 60.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.