quindecennial: Meaning and Definition of

quin•de•cen•ni•al

Pronunciation: (kwin"di-sen'?-ul), [key]
? adj.
  1. of or pertaining to a period of 15 years or the 15th occurrence of a series, as an anniversary.
?n.
  1. a 15th anniversary.
Random House Unabridged Dictionary, Copyright 1997, by Random House, Inc., on Infoplease.