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).
X-linked
On the X chromosome. 'Linked' in genetics does not mean merely associated. An X-linked gene travels with the X chromosome and therefore is part of the X chromosome.
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Show more- Dieldrin A chlorinated hydrocarbon insecticide. See: Aldrin and dieldrin
- Acellular Not made up of cells or divided into cells. Or lacking intact cells as, for example, an acellular vaccine…
- Oliguria Less urination than normal.
- Arcuate nucleus A collection of neurons (nerve cells) in the hypothalamus of the brain. Some arcuate neurons contain dopamine…
- Cardiovascular The circulatory system comprising the heart and blood vessels which carries nutrients and oxygen to the…
- Diverticulitis, bleeding from Diverticular bleeding typically occurs intermittently over several days. Colonoscopy is usually performed to…
- Iron excess Iron overload can damage the heart, liver, gonads and other organs. Iron overload is a particular risk for: >…
- Na (sodium) Na is the chemical symbol for sodium. From natrium, a synonym for sodium. Sodium is the major positive ion…
- Capsule >In medicine, a membranous structure that envelops an organ, a joint, tumor, or any other part of the body…
- Substance, pressor See: Pressor substance
- Eyelash One of the familiar stiff hairs that project from the margin of the eyelid. Eyelashes tend to be noticed…
- MMWR The Morbidity and Mortality Weekly Report, a weekly scientific publication prepared and published by the CDC…