centenarian

noun

cen·​te·​nar·​i·​an ˌsen-tə-ˈner-ē-ən How to pronounce centenarian (audio)
-ˈne-rē-
: one that is 100 years old or older
centenarian adjective

Did you know?

We can't say there are exactly 100 English words based on the Latin root centum, meaning "hundred," but there are certainly dozens. "Centenarian" isn't the oldest one; it only dates from the late 1700s. Far older is "centurion" (an ancient Roman military officer), which has been around since the 13th century. A younger "centum" offspring is "centisecond," a rare term for 1/100 of a second that dates from the 1950s. From colorful words such as "centicipitous" (which means "100-headed") to practical ones like "centgener" ("a device for planting 100 seeds"), "centum" descendants have enlivened our language for centuries.

Examples of centenarian in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The study has identified three basic types of centenarians. Andre Mouchard, Oc Register, 18 May 2025 These centenarians and their lifestyles were photographed by McLain and published in National Geographic in 2005 — catapulting the Blue Zones lifestyle worldwide, including with a Netflix series and even a five-year initiative in Iowa. Linh Ta, Axios, 29 Apr. 2025 The plan by Mayor Monroe Nichols, the first Black mayor of Oklahoma's second-largest city, would not provide direct cash payments to descendants or the last two centenarian survivors of the attack that killed as many as 300 Black people. Arkansas Online, 2 June 2025 The plan by Mayor Monroe Nichols, the first Black mayor of Oklahoma’s second-largest city, would not provide direct cash payments to descendants or the last two centenarian survivors of the attack that killed as many as 300 Black people. Sean Murphy, Los Angeles Times, 2 June 2025 See All Example Sentences for centenarian

Word History

First Known Use

1747, in the meaning defined above

Time Traveler
The first known use of centenarian was in 1747

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Cite this Entry

“Centenarian.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/centenarian. Accessed 20 Jul. 2025.

Kids Definition

centenarian

noun
cen·​te·​nar·​i·​an ˌsent-ᵊn-ˈer-ē-ən How to pronounce centenarian (audio)
: a person 100 years old or older
centenarian adjective

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