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).
Aorta
The largest artery in the body, the aorta arises from the left ventricle of the heart, goes up (ascends) a little ways, bends over (arches), then goes down (descends) through the chest and through the abdomen to where ends by dividing into…
Read the definitionRandom terms
Show more- Type 1 GM2-gangliosidosis See: Tay-Sachs disease
- Fever with renal syndrome, hemorrhagic A set of diseases, also known as hemorrhagic fever, characterized by the abrupt onset of high fever and…
- Calcium deficiency A low level of calcium in the blood (hypocalcemia) which can make the nervous system highly irritable causing…
- Alpers disease A progressive disease of the nervous system characterized by spasticity (tightness), myoclonus and dementia…
- Soft tissue sarcoma A malignant tumor that begins in the muscle, fat, fibrous tissue, blood vessels, or other 'soft' supporting…
- Uvea Part of the eye, consisting collectively of the iris, the choroid of the eye, and the ciliary body > >The…
- Caudal block See Caudal anesthesia
- Anoxia 1. Strictly speaking, the absence of oxygen. 2. The near absence of oxygen. 3. Sometimes used loosely as a…
- Fibrodysplasia ossificans progressiva (FOP) A rare but dramatic genetic disorder that turns muscles, tendons and ligaments into bone, threatening to…
- Abrin A phytotoxin (plant poison) found in the seeds of a plant called the rosary pea or jequirity pea. These seeds…
- Vaccinia adverse reaction See Smallpox vaccination adverse reaction
- Living donor liver transplantation An option for patients who need a liver transplant. In this procedure, a healthy person (usually a family…