The Collaborative International Dictionary of English v.0.48:

Ivry \Ivry\ n.
   A battle (1590) in which the Huguenots under Henry IV. of
   France defeated the Catholics under the duke of Mayenne.

   Syn: battle of Ivry, Ivry la Bataille.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

Ivry
    n 1: a battle (1590) in which the Huguenots under Henry IV
         defeated the Catholics under the duke of Mayenne [syn:
         Ivry, battle of Ivry, Ivry la Bataille]