sesquicentennial
noun
ses·qui·cen·ten·ni·al
ˌse-skwi-sen-ˈte-nē-əl 
: a 150th anniversary or its celebration
sesquicentennial
adjective
Examples of sesquicentennial in a Sentence
Recent Examples on the Web
In Lake County, the Oldendorf farm, which was started in 1851, was honored for reaching its sesquicentennial.
—
Post-Tribune, Chicago Tribune, 24 Aug. 2025
For the sesquicentennial, two days of celebration -- Aug. 5-6, 2000 -- included a catered dinner, car shows, musical entertainment and guest speakers.
—Annette Beard, Arkansas Online, 24 July 2025
According to the university's horticultural department website, professor Jerry Parsons and horticulturist Greg Grant, an alumnus of the class of 1984, were tasked with designing a Texas flag layout using bluebonnets to honor the state's sesquicentennial in 1986 at the San Antonio Botanical Garden.
—Brandi D. Addison, Austin American Statesman, 3 Apr. 2025
And on Friday, after a morning celebrating its 149th Charter Day, the university launched its first celebration of its sesquicentennial and its vision for the future.
—Lily Kepner, Austin American-Statesman, 21 Nov. 2024
See All Example Sentences for sesquicentennial
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.
Post-Tribune, Chicago Tribune, 24 Aug. 2025
For the sesquicentennial, two days of celebration -- Aug. 5-6, 2000 -- included a catered dinner, car shows, musical entertainment and guest speakers.
—Annette Beard, Arkansas Online, 24 July 2025
According to the university's horticultural department website, professor Jerry Parsons and horticulturist Greg Grant, an alumnus of the class of 1984, were tasked with designing a Texas flag layout using bluebonnets to honor the state's sesquicentennial in 1986 at the San Antonio Botanical Garden.
—Brandi D. Addison, Austin American Statesman, 3 Apr. 2025
And on Friday, after a morning celebrating its 149th Charter Day, the university launched its first celebration of its sesquicentennial and its vision for the future.
—Lily Kepner, Austin American-Statesman, 21 Nov. 2024
See All Example Sentences for sesquicentennial
Cite this Entry
“Sesquicentennial.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sesquicentennial. Accessed 30 Oct. 2025.
Copy CitationKids Definition
sesquicentennial
noun
ses·qui·cen·ten·ni·al
ˌses-kwi-sen-ˈten-ē-əl
: a 150th anniversary or its celebration
sesquicentennial
adjective
Love words? Need even more definitions?
Merriam-Webster unabridged
Share