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).
Legg-Calve-Perthes disease
A hip disorder in children due to interruption of the blood supply to the head of the femur (the ball in the ball-and-socket hip joint), causing it to deteriorate. The disease is most common at age 6 to 9, tends to affect boys, but is more…
Read the definitionRandom terms
Show more- Nodule A small solid collection of tissue, a nodule is palpable (can be felt). It may range in size from greater…
- Genitalia, ambiguous See: Ambiguous genitalia
- Prothrombin G20210A mutation See: Prothrombin mutation G20210A
- Biliary sand Biliary sand is a term mostly used by surgeons when they remove the gallbladder to describe uncountable…
- Major gene A gene that is necessary and sufficient by itself to cause a condition. For example, the APC gene is a major…
- Hepatitis Inflammation of the liver caused by the hepatitis A virus (HAV). HAV is usually transmitted from person to…
- Endoplasmic reticulum A structure within cells that is an extension of the nuclear membrane and in which proteins slated to become…
- Allergic vasculitis Vasculitis: A disease (also more commonly called the Churg-Straus syndrome) characterized by inflammation of…
- Fear of bees An abnormal and persistent fear of bees. A phobia can cause avoidance and panic. Phobias are a relatively…
- Meckel's diverticulum An outpouching from the small intestine, due to failure of obliteration of the yolk stalk (which normally…
- Bulla A fluid-filled blister more than 5 mm (about 3/16 inch) in diameter with thin walls. A bulla on the skin is a…
- Metagene A pattern of gene expression. Not an actual gene. 'We identified aggregate patterns of gene expression…