'Practitioner' definitions:

Definition of 'practitioner'

From: WordNet
noun
Someone who practices a learned profession [syn: practitioner, practician]

Definition of 'Practitioner'

From: GCIDE
  • Practitioner \Prac*ti"tion*er\, n. [From Practician.]
  • 1. One who is engaged in the actual use or exercise of any art or profession, particularly that of law or medicine. --Crabbe. [1913 Webster]
  • 2. One who does anything customarily or habitually. [1913 Webster]
  • 3. A sly or artful person. --Whitgift. [1913 Webster]
  • General practitioner. See under General, 2. [1913 Webster]