| MD | a doctor's degree in medicine |
|---|---|
| MD | a Mid-Atlantic state |
| MD | a licensed medical practitioner |
| MD | a radioactive transuranic element synthesized by bombarding einsteinium with alpha particles (Md is the current symbol for mendelevium |
| MD | a master's degree in religion |
| MD | a stimulant drug that is chemically related to mescaline and amphetamine and is used illicitly for its euphoric and hallucinogenic effects |