n.
A person of relatively advanced age, especially a person at or over the age of retirement.
senior-citizen sen'ior-cit'i·zen (sēn'yər-sĭt'ĭ-zən) adj.
senior citizenry senior citizenry n.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
