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 (sĕm′ē-sĕn-tĕn′ē-əl, sĕm′ī-)
Marking the 50th anniversary of an event.
A 50th anniversary or its celebration.


1. (prenominal) of or relating to the 50th anniversary of some event
2. occurring once every 50 years
a 50th anniversary


(ˌsɛm i sɛnˈtɛn i əl, ˌsɛm aɪ-)

1. of or pertaining to a fiftieth anniversary.
2. a fiftieth anniversary.
3. a celebration of this.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.semicentennial - the 50th anniversary (or the celebration of it)
anniversary, day of remembrance - the date on which an event occurred in some previous year (or the celebration of it)
Adj.1.semicentennial - of or relating to or marking the 50th anniversary
References in periodicals archive ?
This past May 20 marked the semicentennial of the start of Mao Zedong's Cultural Revolution in China, and this past Aug.
In his study of the formation of Civil War memory in the fifty years leading up to the Semicentennial Commemoration of 1910-1915, David Blight identifies three "overall visions of Civil War memory"--reconciliationist, white supremacist, and emancipationist--noting that the first two often "locked arms" (2001, 2).
Fellows from all around the world from every decade since 1965 represented the Trust at the reception and to mark its semicentennial.
Semicentennial tribute to the ingenious neurobiologist Christfried Jakob (1866-1956).
6) These include the uniqueness of Howard as the only institution for blacks with the status of being a university, which conceivably was an empowering experience for its black students; the university's grand plans to commemorate the semicentennial of its founding in 1867; administration and faculty involvement in plans for supporting the nation's participation in World War I (e.
In 1921, when the Palladian Literary Society celebrated its semicentennial, it was the oldest continuous student organization at the University of Nebraska.
The bigger reason for the absence of stories about 1960, however, is one that no one wants to talk about: the real JFK semicentennial will take place on November 22, 2013.
At the semicentennial ceremonies in 1887 it was reported that of the women who served under the ABCFM, 261, more than one fifth, 56 in all, had been educated at Mount Holyoke.
A Semicentennial Tribute to Miguel de Unamuno, Ramon del Valle-Inclan and Federico Garcia Lorca.
AN, CE 8:511) He does not mention the reason for his trip to Brunswick, namely his invitation to attend Bowdoin's semicentennial celebration on August 31 (Letters, CE 16:379).
The two-hour get-together features make-your-own masterpieces with materials provided by the association, an exhibit of work selected for the second annual National Juried Art Show and refreshments to celebrate the association's semicentennial.