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

How Sourdough Affects Blood Sugar Gathering reliable evidence on sourdough’s health effects can be tricky, said Elizabeth Holt, MD, PhD, a UCSF Health endocrinologist who specializes in treating tumors of the endocrine system. —Brian Mastroianni, Health, 8 Dec. 2025

Marino has held senior leadership roles in the National Capital Region, including Director of Emergency Preparedness for the Washington Metropolitan Area Transit Authority and Assistant Fire Chief of Prince George’s County (MD) Fire/EMS, according to Tuesday’s announcement. —Judy L. Thomas, Kansas City Star, 3 Dec. 2025

According to Michelle Bennett, MD, FAAP, a pediatrician with Elliston Pediatrics in New York, low stimulation shows like Not Quite Narwhal are generally quieter and slower-paced. —Sherri Gordon, Parents, 3 Dec. 2025

After retiring from the military in 2006, Green founded Align MD, a hospital staffing company, and launched a medical foundation providing care to underserved communities. —Hannah Parry, MSNBC Newsweek, 2 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