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).
Clinical trials
Clinical trials: Trials to evaluate the effectiveness and safety of medications or medical devices by monitoring their effects on large groups of people. Clinical research trials may be conducted by government health agencies such as NIH…
Read the definitionRandom terms
Show more- Tarsal tunnel syndrome A type of compression neuropathy (nerve disease due to compression of the nerve) in the ankle and foot…
- Smallpox The misuse of smallpox as an agent of bioterrorism. Smallpox was eradicated in 1977. Routine vaccinations…
- NREM sleep Sleep: NREM (non-rapid eye movement) sleep is dreamless sleep. During NREM, the brain waves on the…
- Roentgenology Radiology, the science of radiation and, specifically, the use of both ionizing (like X-ray) and nonionizing…
- Severe cyclonic storm A regionally specific name for a strong tropical cyclone in the North Indian Ocean. Other terms for precisely…
- Shunt, Glenn See: Glenn shunt
- Nit Nits are lice eggs. They are hard to see and are often confused with dandruff or hair spray droplets. Nits…
- Ovary, dermoid cyst of the A bizarre tumor, usually benign, in the ovary that typically contains a diversity of tissues including hair…
- CEPH The Centre d'Etudes du Polymorphisme Humain (CEPH), an internationally renowned research laboratory created…
- Mineralocorticoids A group of hormones (the most important being aldosterone) that regulate the balance of water and…
- Colostomy An alternative exit from the colon created to divert waste through a hole in the colon and through the wall…
- Pasteur Institute A non-profit private foundation which contributes to the prevention and treatment of disease, primarily…