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semicentennial
[ sem-ee-sen-ten-ee-uhl, sem-ahy- ]
/ ˌsɛm i sɛnˈtɛn i əl, ˌsɛm aɪ- /
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adjective
of or relating to a fiftieth anniversary.
noun
a fiftieth anniversary.
the celebration of this anniversary.
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Origin of semicentennial
First recorded in 1855–60; semi- + centennial
Words nearby semicentennial
semibasement, semibituminous coal, semibold, semibreve, semicentenary, semicentennial, semicircle, semicircular canal, semicivilized, semiclassical, semicolon
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
British Dictionary definitions for semicentennial
semicentennial
/ (ˌsɛmɪsɛnˈtɛnɪəl) /
adjective
(prenominal) of or relating to the 50th anniversary of some event
occurring once every 50 years
noun
a 50th anniversary
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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