'Picador' definitions:

Definition of 'picador'

(from WordNet)
noun
The horseman who pricks the bull with a lance early in the bullfight to goad the bull and to make it keep its head low

Definition of 'Picador'

From: GCIDE
  • Picador \Pic`a*dor"\, n. [Sp.] A horseman armed with a lance, who in a bullfight receives the first attack of the bull, and excites him by picking him without attempting to kill him. [1913 Webster]