'Undine' definitions:

Definition of 'undine'

From: WordNet
noun
Any of various female water spirits

Definition of 'Undine'

From: GCIDE
  • Undine \Un*dine"\, n. [G. undine, or F. ondin, ondine, from L. unda a wave, water.] One of a class of fabled female water spirits who might receive a human soul by intermarrying with a mortal. [1913 Webster]

Synonyms of 'undine'

From: Moby Thesaurus