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

Much of the benefit comes from fat loss, according to Mir Ali, MD, the medical director of the MemorialCare Surgical Weight Loss Center at Orange Coast Medical Center in Fountain Valley, California, who was not involved with the research. — Emily Kay Votruba, EverydayHealth.com, 16 Sep. 2026

But there are changes that happen in the body beyond fat loss while someone is on a weight loss journey, says Mir Ali, MD, medical director of MemorialCare Surgical Weight Loss Center at Orange Coast Medical Center in Fountain Valley, CA. — Korin Miller, Allure, 16 Sep. 2026

Lis Anderson is founder and director at PR consultancy AMBITIOUS, an experienced agency MD with 25 years in the communications industry. — Lis Anderson, Forbes.com, 14 Sep. 2026

According to Michael Wilkinson, MD, a cardiologist with UC San Diego Health, the scans can be a powerful tool for helping patients understand their heart health and potentially move forward with appropriate interventions. — Laura Bradley, HEALTH, 9 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