Definition of "medical doctor" [medical doctor]

• A physician; a person who holds a doctoral degree or first professional degree in medicine, and practices in that profession. (noun)

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• "Doc Earle, as he was called, was part mystic, part genius, part eccentric philosopher—a poker-obsessed practicing medical doctor who had migrated to Texas from Newfoundland, Canada, and learned the game in the tough Texas underground scene."
• "James Laidler, a medical doctor who teaches in the biology department at Portland State University, has firsthand experience with the lure of this approach."
• "One of the important fathers of epidemiology the study of epidemics, how a disease is distributed in a population and factors that influence this distribution was Dr. John Snow, a medical doctor in London in 1854."