MD

abbreviation or noun

variants or M.D.
plural MDs or M.D.s
: doctor of medicine
John Smith, MD
She earned an M.D. from Harvard Medical School.
Members pay what they would for a standard, managed-care plan, and they get the same access to MDs and hospitals.Geoffrey Cowley et al.

Examples of MD in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
As your abdomen expands to accommodate a growing uterus, your skin and its underlying connective tissues are stretched and your collagen production is impacted, says Suzanne Barnhart, MD, OhioHealth OB/GYN, Pickerington Campus. Sherri Gordon, Parents, 9 June 2026 Co-lead study author Shinwan Kany, MD, a visiting scientist at the Cardiovascular Research Center with Mass General Brigham Heart and Vascular Institute and the Broad Institute, commented on how these findings could shape preventive care. Angelica Stabile, FOXNews.com, 9 June 2026 Avoid Alcohol, Caffeine, and Late-Night Meals Meal timing is another lifestyle factor to consider when trying to improve sleep, according to Sharon Brangman, MD, a geriatrician and trustee of the McKnight Brain Research Foundation. Allison Forsyth, Health, 9 June 2026 The film, produced by MD Pictures and Umbara Brothers Film, is directed by Anggy Umbara from a screenplay by Lele Laila. Naman Ramachandran, Variety, 9 June 2026 See All Example Sentences for MD

Word History

Etymology

borrowed from Medieval Latin, abbreviation of medicīnae doctor

First Known Use

15th century, in the meaning defined above

Time Traveler
The first known use of MD was in the 15th century

Browse Nearby Words

Cite this Entry

“MD.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/MD. Accessed 12 Jun. 2026.

Medical Definition

Md

1 of 3 symbol
mendelevium

MD

2 of 3 abbreviation or noun
variants or M.D.

MD

3 of 3 abbreviation
1
medical department
2
muscular dystrophy
Etymology

Latin medicinae doctor

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