'Pluviose' definitions:

Definition of 'Pluviose'

(from WordNet)
noun
Fifth month of the Revolutionary calendar (January and February); the rainy month

Definition of 'Pluviose'

From: GCIDE
  • Pluviose \Plu`vi`[^o]se"\, n. [F. See Pluvious.] The fifth month of the French republican calendar adopted in
  • 1793. It began January 20, and ended February 18. See Vend['e]miaire. [1913 Webster]