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).
Aorta, descending
The descending aorta is the part of the aorta, the largest artery in the body, that runs down through the chest and the abdomen. The descending aorta starts after the arch of the aorta and ends by splitting into two great arteries (the…
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Show more- Antidote An agent that counteracts a poison and neutralizes its effects. A chemical antidote is a substance that…
- Voluntary Euthanasia Society (VES) The first society of its kind in the world -- its founders included doctors, lawyers and churchmen -- the VES…
- Gametic selection Preferential selection of gametes (germ cells -- sperm or eggs). Gametic selection is a mechanism of…
- Disorder, specific developmental A disorder that selectively affects one area of development, sparing essentially all other areas of…
- Great pox Syphilis. An old name to distinguish it from the smallpox
- Fever, Meuse Fever, Meuse: Named for the Meuse River area, one of the great battlegrounds of World War I. Also known as…
- Bone Bone is the substance that forms the skeleton of the body. It is composed chiefly of calcium phosphate and…
- Otosclerosis The abnormal formation of new bone in the middle ear that gradually immobilizes the stapes (stirrup bone) and…
- Acrophobia An abnormally excessive and persistent fear of heights. Sufferers experience severe anxiety even though they…
- Deafness-ichthyosis-keratitis syndrome See Keratitis-ichthyosis-deafness syndrome
- System, immune A complex system that is responsible for distinguishing us from everything foreign to us, and for protecting…
- Microvascular surgery Surgery on very small blood vessels such as those only 3 to 5 millimeters in diameter. Microvascular surgery…