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).
Drug Enforcement Administration (DEA)
Every prescription written in the United States bears a DEA number, that of the prescribing doctor, the DEA being the Drug Enforcement Administration of the U.S. Department of Justice. Historically, the DEA's roots go back to the founding…
Read the definitionRandom terms
Show more- Kanner syndrome (Also called autism). A spectrum of neuropsychiatric disorders characterized by deficits in social…
- Rhinitis Irritation of the nose. Derived from the Greek word rhinos meaning of the nose
- Meningitis, neoplastic A condition due to cancer that has spread from the original (primary) tumor to the meninges, the tissue…
- Thrombosis, deep vein (DVT) Blood clotting in the veins of the inner thigh or leg. In air travel, DVT is the 'economy-class syndrome.'…
- Irradiation, food See: Food irradiation
- Syndrome, respiratory distress (RDS) Formerly known as hyaline membrane disease, a syndrome of respiratory difficulty in newborn infants caused by…
- Arachnoiditis Arachnoiditis: Inflammation of the middle layer of membranes covering the brain and spinal cord…
- Vaccination, Haemophilus influenzae type B (HIB) Immunization designed to prevent diseases caused by Haemophilus influenzae type B (HIB), a bacteria…
- Cellophane maculopathy See: Macular pucker
- Burn, second degree A burn that looks like a first degree burn in that it is red and sensation is intact but the damage from the…
- Gray syndrome See: Gray baby syndrome
- Gallstones and ERCP A mixture of microscopic particulate matter in bile, also called biliary sludge, that occurs when particles…