semicentennial

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English[edit]

Etymology[edit]

semi- ‎(half) +‎ centennial ‎(of 100 years)

Adjective[edit]

semicentennial ‎(not comparable)

  1. Occurring every 50 years

Noun[edit]

semicentennial ‎(plural semicentennials)

  1. A 50th anniversary.
    The city celebrated its semicentennial last year.