A learned man; one qualified to give instruction of the higher order in a science or art; particularly, one who has re-ceived the highest academical degree in his art or faculty, as, a doctor of laws, medicine^ or theology. In colloquial language, however, the term is practically restricted to practitioners of medicine. Harrison v. State, 102 Ala. 170, 15 South. 563; State v. Mc-Knight, 131 N. O. 717, 42 S. E. 580, 59 L. R. A. 187