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

Most units run between 80 and 160°F, according to Casey Kelley, MD, founder and medical director of Case Integrative Health and a faculty member at Northwestern’s Feinberg School of Medicine. — Samantha Agate, Miami Herald, 23 Sep. 2026

Firefighters responded to Jarrettsville Furniture on Federal Hill Road (MD 165) in Jarrettsville, where crews conducted a fire attack and ventilation operations, officials said. — Adam Thompson, CBS News, 21 Sep. 2026

About 15% to 30% of all diagnostic imaging in adult patients contains at least one incidental finding, according to Matthew Davenport, MD, a radiologist at the University of Michigan. — Hanna Wickes, Fort Worth Star-Telegram, 21 Sep. 2026

That level of light is quite dim—even lower than the ambient light that might peek into a bedroom from a hallway nightlight, according to Rasi Wickramasinghe, MD, PhD, FACC, chief of cardiology at Houston Methodist Sugar Land Hospital. — Stephanie Anderson Witmer, HEALTH, 17 Sep. 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