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).
National Institutes of Health Clinical Center
: The clinical research facility of the National Institutes of Health (NIH) in the U.S. As a national resource, the CC's mission is to 'provide the patient care, services, and environment needed to initiate and support the highest quality…
Read the definitionRandom terms
Show more- Superior vena cava A large vein that receives blood from the head, neck, upper extremities, and thorax and delivers it to the…
- Acid indigestion Excessive secretion of hydrochloric acid by the stomach cells. Medically known as hyperchlorhydria. Sometimes…
- DNA repair pathway The sequence of steps in the repair of DNA. Each step is governed by an enzyme.
- Apheresis The process of removing a specific component from blood and returning the remaining components to the donor…
- Immunization, yellow fever A live attenuated (weakened) viral vaccine that is recommended for people traveling to or living in tropical…
- Esophageal reflux A condition wherein stomach contents regurgitate or back up (reflux) into the esophagus (a long cylindrical…
- Predispose To make more likely or render susceptible. Smoking predisposes to a number of diseases, including esophageal…
- Transfusion medicine Blood transfusion and blood conservation are the complementary activities that constitute the clinical arena…
- AIDS Disease due to infection with the human immunodeficiency virus (HIV). AIDS is an acronym for Acquired…
- Acute mountain sickness (AMS) Acute mountain sickness (AMS) is the effect on the body of being in a high altitude environment. AMS is…
- Primordia See: Primordium
- Tuberous sclerosis A genetic disorder characterized by abnormalities of the skin, brain, kidney, and heart. The skin…