Md

1 of 4

abbreviation (1)

Maryland

Md

2 of 4

symbol

mendelevium

MD

3 of 4

abbreviation or noun

ˌem-ˈdē 

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.

MD

4 of 4

abbreviation (2)

1

[Italian mano destra] right hand

2

Maryland

3

medical department

4

minidisc

5

months after date

6

muscular dystrophy

Examples of Md in a Sentence

Recent Examples on the Web

Abbreviation or noun

The Alice Walton School of Medicine is a non-profit, four-year MD program. —Fort Worth Star-Telegram, 26 Aug. 2025

People with heart disease are also much more susceptible to severe complications from respiratory infections than people without heart disease, says Christopher Kelly, MD, a cardiologist at UNC Health in Chapel Hill, North Carolina. —Emily Kay Votruba, EverydayHealth.com, 26 Aug. 2025

Dating back to the late 1950s, developmental psychologists John Bowlby, MD, and Mary Ainsworth, PhD, defined four adult attachment styles. —Jenna Ryu, SELF, 26 Aug. 2025

Join Joseph Weiss, MD, for a fascinating three-part series on the vital connection between the brain, gut, diet, microbiome, and genome. —Kris Slugg, San Diego Union-Tribune, 24 Aug. 2025

Word History

Etymology

Abbreviation or noun

borrowed from Medieval Latin, abbreviation of medicīnae doctor

First Known Use

Abbreviation Or Noun

15th century, in the meaning defined above

Medical Definition

Md

1 of 3 symbol

mendelevium

MD

2 of 3 abbreviation or noun

variants or M.D.

ˌem-ˈdē 

: doctor of medicine

MD

3 of 3 abbreviation

1

medical department

2

muscular dystrophy

Etymology

Abbreviation or noun

Latin medicinae doctor