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).
Sodium
The major positive ion (cation) in fluid outside of cells. The chemical notation for sodium is Na+. When combined with chloride, the resulting substance is table salt. Excess sodium (such as from fast food hamburger and fries) is excreted…
Read the definitionRandom terms
Show more- Anton Chekhov See: Chekhov, Anton
- Colon cancer, family history of The presence of a history of colorectal cancer in a family. The colon cancer risk is higher if an immediate…
- Medical-school syndrome See: Medical school syndrome
- Para- (prefix) A prefix with many meanings, including: alongside of, beside, near, resembling, beyond, apart from, and…
- Hypnic jerk The common normal phenomenon of jerking awake, usually accompanied by a feeling of falling, just as one is…
- Serum glutamic pyruvic transaminase (SGPT) An enzyme that is normally present in liver and heart cells. SGPT is released into blood when the liver or…
- Radioallergosorbent test An allergy test done on a sample of blood. The test is used to check for allergic sensitivity to specific…
- Sign, Gottron A scaly, patchy redness over the knuckles seen in patients with dermatomyositis, an inflammatory muscle…
- Pseudomonas infection Infection usually with Pseudomonas aeruginosa, the versatile 'blue-green pus bacteria' that opportunistically…
- XXXXX syndrome A chromosome disorder in females, caused by the presence of five X chromosomes rather than the usual two. It…
- Pharmacist A professional who fills prescriptions, and in the case of a compounding pharmacist, makes them. Pharmacists…
- Ringworm (tinea) Ringworm (tinea): Ringworm is a fungal infection of the skin previously thought to be due to a parasite…