Definition of "centenarian" [cen•te•na•ri•an]

• One who is 100 years old or older. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "It is a rather remarkable fact in connection with the examples of longevity cited that in almost every instance the centenarian is a person in the humblest rank of life."
• "A centenarian is a person who has lived beyond 100 years."
• "The centenarian is the oldest known living owner of a 2010 Camaro."