Search Result for "quadrennium": 
Wordnet 3.0

NOUN (1)

1. a period of four years; 



The Collaborative International Dictionary of English v.0.48:

Quadrennium \Quad*ren"ni*um\, n. [NL. See Quadrennial.]
   A space or period of four years.
   [1913 Webster]


WordNet (r) 3.0 (2006):

quadrennium
    n 1: a period of four years