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).
Abdomen
The belly, that part of the body that contains all of the structures between the chest and the pelvis. The abdomen is separated anatomically from the chest by the diaphragm, the powerful muscle spanning the body cavity below the lungs. The…
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Show more- Southern tick-associated rash illness A disease characterized by a rash like that in Lyme disease, recognized in the southeastern and south-central…
- Perinatal Pertaining to the period immediately before and after birth. The perinatal period is defined in diverse ways…
- Catalyst A substance that speeds up a chemical reaction but is not consumed or altered in the process. Catalysts are…
- Hepatic transplant See: Liver transplant
- Liver spot A pigmented flat spot on sun-exposed skin in older adults, especially on the back of the hands and on the…
- Milligray A unit of absorbed radiation equal to 0.001 gray. (A gray is the dose of one joule of energy absorbed per…
- Pisa syndrome A condition in which there is sustained involuntary flexion of the body and head to one side and slight…
- Central fovea See: Fovea.
- Albumen The white of an egg, the part of the egg from which meringues are made. Albus in Latin is white. Not to be…
- Marinesco-Sjogren syndrome Syndrome: A genetic disorder characterized by very small stature, cerebellar ataxia (wobbliness), cataracts…
- Arthroscope A thin flexible fiberoptic scope which is introduced into a joint space through a small incision in order to…
- Red Shield Trade name of the insecticide dieldrin. See: Aldrin and dieldrin