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.
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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).
Aortic valve
One of the four valves in the heart, this valve is situated at exit of the left ventricle of the heart where the aorta (the largest of all arteries) begins. The aortic valve lets blood from the left ventricle be pumped up (ejected) into…
Read the definitionRandom terms
Show more- Egg sac The 'egg sac' or ovary is one of a pair of reproductive glands in women. They are located in the pelvis, one…
- Tumor, Wilms See: Wilms tumor
- Chronic myelogenous leukemia Chronic inflammation of the skin lining the external ear canal leading to the ear drum. Can be caused by a…
- Radiation therapy, conformal A procedure that uses computers to create a 3-dimensional picture of the tumor in order to target the tumor…
- Bacterial prostatitis, chronic Prostatitis, chronic: Longstanding bacterial infection of the prostate gland superimposed on a defect in the…
- Potassium deficiency Inadequate potassium intake and hence potassium levels in the blood that are abnormally low. This state is…
- Nephritis, lipomatous A disorder in which the nephrons of the kidney are gradually replaced with fatty tissues, preventing proper…
- Extubation The process of removing a tube from a hollow organ or passageway, often from the airway. The opposite of…
- EEE Eastern equine encephalitis
- Dander Tiny scales shed from human or animal skin or hair. Dander floats in the air, settles on surfaces and makes…
- Fracture, hangman's See: Hangman's fracture
- Simian virus 40 See: SV40