Wordnet 3.0
NOUN (1)
1. 
 the centennial rites and games of ancient Rome that marked the commencement of a new generation (100 years representing the longest life in a generation); 
 observances may have begun as early as the 5th century BC and lasted well into the Christian era; 
[syn: Ludi Saeculares, secular games]
WordNet (r) 3.0 (2006):
Ludi Saeculares
    n 1: the centennial rites and games of ancient Rome that marked
         the commencement of a new generation (100 years
         representing the longest life in a generation); observances
         may have begun as early as the 5th century BC and lasted
         well into the Christian era [syn: Ludi Saeculares,
         secular games]