quasquicentennial: Meaning and Definition of

quas•qui•cen•ten•ni•al

Pronunciation: (kwos"kwi-sen-ten'?-ul), [key]
? adj.
  1. pertaining to or marking a period of 125 years.
?n.
  1. a 125th anniversary.
  2. a celebration marking such an anniversary.
Random House Unabridged Dictionary, Copyright 1997, by Random House, Inc., on Infoplease.