Definition of fairy queen:
(N) :
The Fairy Queen, in English folklore, traditionally ruled the fairies.
(N) :
The Fairy Queen, also known as the East Indian Railway No. 22, is a steam locomotive which was built in 1855.
(N) :
In folklore and literature, the Fairy Queen or Queen of the Fairies is a female ruler of the fairies, sometimes but not always paired with a king.