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

Duties on booties Women’s boots for sale in Annapolis, MD, on September 12, 2025. —Leslie Josephs, CNBC, 26 Dec. 2025

While abroad, you may also be exposed to germs that aren’t common in the US, Theresa Fiorito, MD, a pediatric infectious disease specialist and director of the family travel medicine center at NYU Langone Hospital—Long Island, tells SELF. —Julia Ries Wexler, SELF, 26 Dec. 2025

This solution is also a favorite of Angela Lamb, MD, an associate professor at Mount Sinai Hospital’s department of dermatology in NYC. —Alanna Martine Kilkeary, Glamour, 25 Dec. 2025

These side effects are similar to injectable Wegovy and Ozempic, says Melanie Jay, MD, a professor of medicine and population health at the New York University Grossman School of Medicine and director of the NYU Langone Comprehensive Program on Obesity Research. —Tom Gavin, EverydayHealth.com, 23 Dec. 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