semicentennial: Meaning and Definition of

sem•i•cen•ten•ni•al

Pronunciation: (sem"?-sen-ten'?-ul, sem"?-), [key]
? adj.
  1. of or pertaining to a fiftieth anniversary.
?n.
  1. a fiftieth anniversary.
  2. the celebration of this anniversary.
Random House Unabridged Dictionary, Copyright 1997, by Random House, Inc., on Infoplease.
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