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

In May 2025, Kennedy drank shots of raw milk in the White House with the podcaster/influencer Carnivore MD. —Annie Levin, Washington Post, 10 Feb. 2026

This increase in blood pressure can climb as high as 200 millimeters of mercury (mm Hg), particularly during exercises like squats and deadlifts, John Higgins, MD, MBA, a sports cardiologist at UTHealth Houston, told Health. —Sherri Gordon, Health, 10 Feb. 2026

According to an old study by Dennis Ownby, MD, a pediatrician and former head of the allergy and immunology department of the Medical College of Georgia, in Augusta, having multiple pets actually decreases a child's risk of developing certain allergies. —Bill Strickland, Parents, 8 Feb. 2026

Only about 10% percent of glioblastoma patients live more than five years after diagnosis, according to the University of Texas' MD Anderson Cancer Center. —CBS News, 7 Feb. 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