semicentennial
/ˌsɛˌmaɪsnˈtɛniəl/
semicentennial · adj — of or related to a 50th anniversary, occurring every 50 years.
Definition from Wiktionary (CC BY-SA 3.0).
Among words judged in Lexicurio's Arena, semicentennial ranks #2,041 of 43,053 for Qualifying.
semicentennial is pronounced /ˌsɛˌmaɪsnˈtɛniəl/.
Etymology
From semi- (“half”) + centennial (“100 year, 100th anniversary”), q.v.
adj
- Of or related to a 50th anniversary, occurring every 50 years.
noun
- A 50th anniversary.e.g.“The city celebrated its semicentennial last year.”
Definitions & examples from Wiktionary (CC BY-SA 3.0).