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

Competing on a shredded ligament sounds risky for long-term knee health, but that’s not necessarily the case, Daniel Kaplan, MD, an orthopedic surgeon and sports medicine specialist at NYU Langone Health, tells SELF. —Korin Miller, SELF, 3 Feb. 2026

Hair growth brands were also present, including Keranique and Bosley MD, which were showing at Cosmoprof Miami for the first time, attracted to this particular show by the Latin American presence. —Kathryn Hopkins, Footwear News, 3 Feb. 2026

My anesthesia was administered by an MD anesthesiologist, but there are also many nurse anesthetists that work regularly with plastic surgeons. —Patricia Tortolani, Allure, 29 Jan. 2026

Why Your Skin Changes So Much After Birth Anne Marano, MD, associate professor of dermatology at Duke University School of Medicine, explains that estrogen hormone levels are extremely high during pregnancy, which play a key role in skin health. —Alex Vance, Parents, 29 Jan. 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