Definition of sesquicentennial in English:


Syllabification: ses·qui·cen·ten·ni·al
Pronunciation: /ˌseskwisenˈtenēəl


  • Of or relating to the one-hundred-and-fiftieth anniversary of a significant event.
    More example sentences
    • The University of Michigan Medical School this year celebrates its sesquicentennial anniversary.
    • Renovation and redecoration of church property was followed by an elaborate sesquicentennial celebration.
    • Thus it was that I wound up postponing my degree and staying a fifth year to edit the sesquicentennial edition of the university's yearbook.


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  • A one-hundred-and-fiftieth anniversary.
    More example sentences
    • He performed at Harold Washington's mayoral inauguration in 1987, at Washington's funeral, and at Chicago's sesquicentennial.
    • Philadelphia's 1926 effort to mark the nation's sesquicentennial with a world's fair was an aesthetic and commercial disappointment.

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Pronunciation: mɪˈlɔːd
used to address an English nobleman