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).
Right heart
The heart is composed functionally of two hearts - the right heart and the left heart. The right heart consists of the right atrium which receives deoxygenated blood from the body and the right ventricle which pumps it to the lungs. The…
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Show more- Stone, kidney Kidney stone: A stone in the kidney (or lower down in the urinary tract). Kidney stones are a common cause of…
- Vincent angina This is trench mouth, a progressive painful infection with ulceration, swelling and sloughing off of dead…
- Node, atrioventricular The atrioventricular (AV) node is an electrical relay station between the atria (the upper) and the…
- Labile Labile: Unstable, unsteady, not fixed. In psychology or psychiatry, labile denotes free and uncontrolled…
- Psychotherapy Psychotherapy: The treatment of a behavior disorder, mental illness, or any other condition by psychological…
- Myeloproliferative disorders Malignant diseases of certain bone marrow cells including those that give rise to the red blood cells, the…
- Biloma An encapsulated collection of bile within the abdomen. A biloma may form if there is bile duct disruption, as…
- Dystonia, laryngeal See: Spasmodic dysphonia
- Cystitis Inflammation of the bladder. Cystitis can be due for example to infection from bacteria that ascend the…
- Homogentisate 1,2-dioxygenase The enzyme encoded in the HGD gene. Mutation of HGD causes the genetic disease alkaptonuria. Homogentisate…
- Thrombocyte A platelet. Crucial to normal blood clotting. Although platelets are sometimes classed as blood cells, they…
- Progeria A rare genetic disorder that causes children to age prematurely. The classic type of childhood progeria is…