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From semi- (“half”) + centennial (“100 year, 100th anniversary”), q.v.
Etymology from Wiktionary, CC BY-SA 4.0.
semicentennial
Today it means: Of or related to a 50th anniversary, occurring every 50 years. Full definition →
Today it means: Of or related to a 50th anniversary, occurring every 50 years. Full definition →
From semi- (“half”) + centennial (“100 year, 100th anniversary”), q.v.
Etymology from Wiktionary, CC BY-SA 4.0.