Source : Webster's Revised Unabridged Dictionary (1913)

Pulsatilla \Pul`sa*til"la\, n. [NL.] (Bot.)
   A genus of ranunculaceous herbs including the pasque flower.
   This genus is now merged in {{Anemone}}. Some species, as
   {Anemone Pulsatilla}, {Anemone pratensis}, and {Anemone
   patens}, are used medicinally.

Source : WordNet®

Pulsatilla
     n : includes a group of plants that in some classifications are
         included in the genus Anemone: pasqueflowers [syn: {genus
         Pulsatilla}]