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).
Erythema chronicum migrans
The classic initial rash of Lyme disease. In the early phase of the illness, within hours to weeks of the tick bite, the local skin develops an expanding ring of unraised redness. There may be an outer ring of brighter redness and a…
Read the definitionRandom terms
Show more- Recurrent trisomy Recurrence of trisomy, as when there are two or more children with trisomy in the same family. Recurrent…
- Atrial Pertaining to the atria, the upper chambers of the heart, as in atrial fibrillation and atrial septal defect
- Embryonal carcinoma A malignant germ cell tumor that occurs most often in the testes and accounts for about 40% of testicular…
- Degeneration, macular Degeneration, macular: A disease that progressively destroys the macula, the central portion of the retina…
- Moisturize To dampen; to replenish lost liquid; to add vapor; to humidify. 'Moisturize' usually suggests that the thing…
- Sublingual Underneath the tongue. A sublingual medication is a type of lozenge put under the tongue where it dissolves…
- Hyperosmolarity In biochemistry, an osmolar concentration of the body fluids that is abnormally increased
- Monocyte A white blood cell that has a single nucleus and can ingest (take in) foreign material. (In other words, a…
- Embolism The obstruction of a blood vessel by a foreign substance or a blood clot blocking the vessel. Something…
- Wet market A live animal market, a common sight in many areas of the world and a source of influenza viruses and other…
- Crick-Brenner experiment An elegant and important experiment performed in 1961 by Francis Crick and Sydney Brenner. The experiment…
- NF1 (neurofibromatosis type 1) See: Neurofibromatosis type 1