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).
GI
1. In medicine, commonly used abbreviation for gastrointestinal, referring collectively to the stomach and the small and large intestine.2. Outside of medicine, GI may stand for galvanized iron, general issue or government issue (as in GI…
Read the definitionRandom terms
Show more- HDL cholesterol Lipoproteins, which are combinations of lipids (fats) and proteins, are the form in which lipids are…
- Mononeuropathy A disorder of a single nerve or nerve trunk. Mononeuropathies may be due to entrapment, compression, stretch…
- Q.d. (on prescription) Seen on a prescription, q.d. (or qd) means one a day (from the Latin quaque die). The abbreviation is…
- Broca's area An area of the cerebral motor cortex in the frontal lobe of the brain that is responsible for speech…
- Pest (plague) An infectious disease due to a bacteria called Yersinia pestis. Y. pestis mainly infects rats and other…
- Gallop rhythm Heart rhythm like the gallop of a horse.
- Arthro- A prefix meaning joint, as in arthropathy and arthroscopic. Before a vowel, it becomes arthr-, as in…
- Power-of-attorney for health-care decision-making See: Proxy. health care.
- River blindness Onchocerciasis, a disease caused by a parasitic worm (Onchocerca volvulus) which is transmitted to persons by…
- Sample, random A group selected randomly, solely by chance
- Aortic arch syndrome 1. Any disorder that causes occlusion of the arteries that arise from the aortic arch. 2. Synonym for…
- Myeloproliferative disorders Malignant diseases of certain bone marrow cells including those that give rise to the red blood cells, the…