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).
Alcohol Abuse and Alcoholism, National Institute
One of the National Institutes of Health, NIAAA's mission is to 'conduct research focused on improving the treatment and prevention of alcoholism and alcohol-related problems to reduce the enormous health, social, and economic consequences…
Read the definitionRandom terms
Show more- Vocal cord One of two small bands of muscle within the larynx. These muscles vibrate to produce the voice. The vocal…
- Gamma knife A type of radiosurgery (radiation therapy) machine that acts by focusing low-dosage gamma radiation from many…
- Calcium deficiency A low level of calcium in the blood (hypocalcemia) which can make the nervous system highly irritable causing…
- Capitation In U.S. health services, capitation refers to a fixed 'per capita' amount that is paid to a hospital, clinic…
- International unit (IU) An international unit (IU) is an internationally accepted amount of a substance. This type of measure is used…
- Varicocele A common scrotal condition characterized by elongation and enlargement of the network of veins leaving the…
- PMR (Polymyalgia Rheumatica) Polymyalgia Rheumatica: A disorder of the muscles and joints of older persons characterized by pain and…
- Angiitis See: Vasculitis
- Disease, Kok A genetic disorder also known as hyperexplexia in which babies have an exaggerated startle reflex (reaction)…
- Heterochromia iridis A difference of color between the iris of one eye and the other. (A person with one brown and one blue eye…
- Hemolytic jaundice, congenital Jaundice, congenital: Known also as hereditary spherocytosis (HS), this is a genetic disorder of the red…
- Angiography A procedure performed to view blood vessels after injecting them with a radioopaque dye that outlines them on…