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

While medications and talk therapy are effective for many people, symptom relief can be elusive, says Samuel Wilkinson, MD, an associate professor of psychiatry at Yale Medicine in New Haven, Connecticut. —Emily Kay Votruba, EverydayHealth.com, 15 Dec. 2025

Beginning in the 1960s, Leica has produced numerous non-rangefinder models, specifically the MD, MDa, and MD2, to be used with a Visoflex for scientific purposes, including lab photography. —Robb Rice, Robb Report, 14 Dec. 2025

Most hydrating toner pads can be used daily—but tailor your frequency to your skin’s tolerance, Divya Shokeen, MD, FAAD says. —Grace McCarty, Glamour, 12 Dec. 2025

The next big controversy in aesthetics will focus on the neck, says Babak Azizzadeh, MD, the president-elect of the American Academy of Facial Plastic and Reconstructive Surgery. —Jolene Edgar, Allure, 11 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