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).
St. Louis encephalitis
A disease caused by a virus (first observed in Illinois in 1932) transmitted from birds to the common Culex mosquito to people. St. Louis encephalitis occurs typically in the summer and early fall. In the U.S., the virus is rarely found…
Read the definitionRandom terms
Show more- American Association of Dermatology One of a multitude of professional societies in the health arena. The AMA (the American Medical Association)…
- Papuliferous 1. Having papules. 2. Having pimples. Simply pimply. From papule, pimple + the Latin fero, to bear. Also…
- Protein kinase A regulatory subunit 1-alpha See: PRKAR1A
- Glucocorticoid A hormone that predominantly affects the metabolism of carbohydrates and, to a lesser extent, fats and…
- Smoking, passive The inhaling of environmental tobacco smoke (ETS) by someone who is not smoking. See: ETS
- Shigella Epidemic and opportunistic bacillary dysentery due to infection with the Shigella bacteria. Shigellosis…
- Iodide The chemical form to which iodine in the diet is reduced before it is absorbed through the intestinal wall…
- Pneumonectomy An operation to remove an entire lung or part of a lung
- Amyotrophic lateral sclerosis 3 ALS3. An adult-onset form of amyotrophic lateral sclerosis (ALS) inherited in an autosomal dominant manner…
- AN The military designation for hydrogen cyanide. See: Cyanide
- Hypoosmolar In biochemistry, referring to hypoosmolarity, an abnormal decrease in the osmolarity of the body fluids
- Marsh fever See malaria