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 study is interesting as a computer science paper, but the methods and findings don’t stand up to medical scientific scrutiny, says Yuval Pinto, MD, an obesity and family medicine doctor at Johns Hopkins Medicine in Baltimore. —Emily Kay Votruba, EverydayHealth.com, 10 Apr. 2026

Yang Xianghua, president of the mainland and overseas business group at iQIYI, and Janice Lee, MD of PCCW Media Group and CEO of Viu, will attend alongside Julie Choi, CEO of TVING, and Toshi Honda, COO of U-Next. —Naman Ramachandran, Variety, 9 Apr. 2026

Transportation officials reported debris along I-695 approaching Exit 29B-A for MD 542, Loch Raven Boulevard. —Todd Karpovich, Baltimore Sun, 8 Apr. 2026

The molecular structure of MD-PiHP is nearly identical to that of MDPV, a potent cathinone that appeared in 2010 and can cause extreme psychosis and death. —Matt Richtel, New York Times, 8 Apr. 2026

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