Semicentennial Definition
sĕmē-sĕn-tĕnē-əl, sĕmī-
adjective
Marking the 50th anniversary of an event.
American Heritage
Of or ending a period of 50 years.
Webster's New World
Synonyms:
- semicentenary
noun
A 50th anniversary or its commemoration.
Webster's New World
Synonyms:
- semicentenary
Other Word Forms of Semicentennial
Noun
Singular:
semicentennial
Plural:
semicentennialsOrigin of Semicentennial
-
semi- (“half") +"Ž centennial (“of 100 years")
From Wiktionary
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