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

According to Joy Gelbman, MD, a cardiologist at Weill Cornell Medicine, these results aren’t necessarily surprising. —Sarah Garone, Health, 9 Sep. 2025

Asha Patton-Smith, MD, a child and adolescent psychiatrist at Kaiser Permanente in Virginia, emphasizes paying attention to the emotional toll. —Adrienne Farr, Parents, 5 Sep. 2025

Lead study author Borja Ibáñez, MD, PhD, says that while the results weren’t necessarily surprising — the clear lack of benefit was. —Tom Gavin, EverydayHealth.com, 4 Sep. 2025

That’s because physical activity helps to promote neuroplasticity, or the brain’s ability to adapt and form new connections, Ayushi Chugh, MD, FAAN, a clinical associate professor of neurology at Barrow Neurological Institute, tells SELF. —Casey Gueren, SELF, 3 Sep. 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