Definition of sesquicentenary in English:

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Pronunciation: /ˌseskwəsenˈtenərē/


(plural sesquicentenaries) chiefly British
A sesquicentennial.
Example sentences
  • Victoria's sesquicentenary in 1984-85 prompted the controversial memorialisation of conflict between Aborigines and settlers, even on official plaques.
  • Eric Richards edited a volume of social history for the South Australian sesquicentenary in 1986.


Relating to a sesquicentennial.
Example sentences
  • Shirley Fitzgerald's Sydney 1842-1992 and shorter books on Chippendale, Surry Hills, Millers Point, and Pyrmont were a major part of Sydney City Council's sesquicentenary celebrations.

For editors and proofreaders

Syllabification: ses·qui·cen·ten·ar·y

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