MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Gallbladder
A pear-shaped organ just below the liver that stores the bile secreted by the liver. During a fatty meal, the gallbladder contracts, delivering the bile through the bile ducts into the intestines to help with digestion. Abnormal…
Read the definitionRandom terms
Show more- C-IBS Constipation-predominant IBS (irritable bowel syndrome)
- Circulation The movement of fluid in a regular or circuitous course. Although the noun 'circulation' does not necessarily…
- Keratosis, senile Synonymous with actinic keratosis. See: Keratosis, actinic
- Peritoneal dialysis Technique that uses the patient's own body tissues inside of the belly (abdominal cavity) to act as a filter…
- Phobia, social Excessive fear of embarrassment in social situations that is extremely intrusive and can have debilitating…
- Syndrome, MASA MASA stands for mental retardation, aphasia, shuffling gait, and adducted thumbs. Features of the syndrome…
- Cubital tunnel The opening between the two heads of a muscle through which the ulnar nerve passes at the elbow and enters…
- Macroorchidism Abnormally large testes. To determine if the testes are too large, a device called an orchidometer is used…
- Voiding cystourethrography A procedure done to examine the bladder and urethra while the bladder fills and empties. A radiopaque liquid…
- Coronary artery spasm A spasm (a sudden constriction) of one of the coronary arteries depriving the (myocardium (the heart muscle)…
- Complement system A series of molecules that work together to perform many immune system functions. For example, the complement…
- Periosteal Pertaining to the periosteum, a dense membrane composed of fibrous connective tissue that closely wraps…