MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
About MedicalVocabulary.org
The most complete online medical dictionary: 16,436 terms covering anatomy, physiology, pathologies, diagnostic exams, pharmacology and every clinical specialty.
Designed for 3 kinds of users:
- Patients and family who want to understand a diagnosis, a medical report or instructions from a doctor.
- Students of medicine, nursing, physiotherapy and the health professions, dealing with technical terminology.
- Doctors, pharmacists and healthcare workers who need a quick and reliable reference.
Definitions are written in clear, accessible language while keeping the rigor required for professional use. Each term has a dedicated URL, instant autocomplete search, and can be shared on WhatsApp, Facebook, X and via email with one click.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
Disclaimer: the content is for informational and educational purposes only and does not replace medical advice. If you have doubts about your health, always consult a qualified professional. In case of emergency call your local emergency number (911 in the US, 112 in the EU).
Hogwarts headache
Headache: A generalized headache from spending many hours reading an unusually long volume such as one of J.K. Rowling's Harry Potter books. The pain resolves one to two days after the patient finishes the book. The term was coined by Dr…
Read the definitionRandom terms
Show more- Dilator A device used to stretch or enlarge an opening. Patients with scarring of the muscular tube through which…
- Fructose A sugar that occurs naturally in fruits and honey. Fructose has 4 calories per gram
- Vertebra A vertebra is one of 33 bony segments that form the spinal column of humans. There are 7 cervical, 12…
- DNA, coding A sequence of DNA that codes for protein. Coding DNA sequences are separated by long regions of DNA called…
- Tympany A hollow drum-like sound produced when a gas-containing cavity is tapped sharply. Tympany is heard if the…
- Monoamine oxidase inhibitor One of a potent class of medications used to treat depression. Abbreviated MAOI.
- Ferritin The major iron storage protein. The blood level of ferritin serves as an indicator of the amount of iron…
- Paracentric chromosome inversion A basic type of chromosome rearrangement. A segment that does not include the centromere (and so is…
- Anal papilla A skin tag that projects up from the junction between the skin and the inside lining of the anus. Anal…
- Vaccinia immune globulin A blood product rich in antibodies against vaccinia, the virus in the smallpox vaccine. Vaccinia immune…
- Paranychia A frequent misspelling of Paronychia
- Hepatitis E virus The agent responsible for hepatitis E. Abbreviated HEV. For more information, see: Hepatitis E