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).
JAK3
Or Jak3. An enzyme found only in cells in the immune system that is critical for the cell signaling process resulting in the development of white blood cells. Mutation of the gene encoding JAK3 is responsible for a form of severe combined…
Read the definitionRandom terms
Show more- Attenuated FAP Attenuated familial adenomatous polyposis
- Tic douloureux A synonym for trigeminal neuralgia. From the French, meaning literally a painful tic. See: Trigeminal…
- Pathognomonic A sign or symptom that is so characteristic of a disease that it makes the diagnosis. For example, Koplik's…
- Cornelia de Lange syndrome See: de Lange syndrome
- T-4 count A test that counts the number of T- 4 cells in the blood, usually to assess the immune status of a patient…
- Achoo syndrome A disorder characterized by nearly uncontrollable paroxysms of sneezing provoked in a reflex fashion by the…
- Klippel-Feil deformity See: Klippel-Feil sequence
- Nicotine Nicotine: An alkaloid (a nitrogen-containing chemical) made by the tobacco plant or produced synthetically…
- Sodium perchlorate See: Perchlorate
- Child abuse El ODYvAlign=top bgColor=#cccccc colSpan=2> vAlign=top width='100%' bgColor=#ffffff>Our Child abuse Main…
- Sprue, nontropical This condition results from an immune (allergic) reaction to gluten, a protein found in wheat and related…
- Embolism The obstruction of a blood vessel by a foreign substance or a blood clot blocking the vessel. Something…