Definition of mazarine blue in English:

mazarine blue

noun

  • A migratory blue butterfly of Eurasian meadows.

Origin

Late 17th century (denoting a deep blue colour): apparently from the name of Cardinal Mazarin, Jules, or of the Duchesse de Mazarin (died 1699), though the connection is unknown.

Pronunciation:

mazarine blue

/ˌmazəˈriːn/