quadrennium

from WordNet (r) 3.0 (2006)
quadrennium
    n 1: a period of four years
    
from 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]
    

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