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).
Bile acid
An acid made by the liver that works with bile to break down fats. On a more technical level, bile acids are steroid carboxylic acids derived from cholesterol. The primary bile acids are cholic and chenodeoxycholic acids. They are…
Read the definitionRandom terms
Show more- Newborn screening Tests of newborns to screen for serious treatable diseases most of which are genetic. The newborn screening…
- Gram calorie (Calorie) The Danish bacteriologist J.M.C. Gram (1853-1938) devised a method of staining bacteria using a dye called…
- Family planning, natural Also known as fertility awareness, periodic abstinence and the rhythm method, this approach entails not…
- Normal range By convention, the normal range for whatever (a particular test, condition, symptom, behavior, etc.) is set…
- Urination, burning See: Dysuria
- Surgery, anti-reflux (fundoplication) A surgical technique that strengthens the barrier to acid reflux when the lower esophageal sphincter does not…
- Small eye Also called microphthalmia, an abnormally small eye, a congenital malformation (birth defect) of the globe…
- Mineralocorticoids A group of hormones (the most important being aldosterone) that regulate the balance of water and…
- Mixed bipolar state The occurrence of symptoms of mania and depression together. A person may feel sad and hopeless while at the…
- Enterococcus Bacteria normally found in the feces of people and many animals. Two types of enterococci -- Enterococcus…
- Rhinotillexomania Compulsive nose picking. Among the more obscure and exotic terms in medicine, rhinotillexomania has drawn…
- CD8+ T cell See: Cytotoxic T-lymphocyte