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).
Opium
An addictive narcotic drug derived from the unripe seedpods of the opium poppy. Preparations of opium were called laudanum. Derivatives of laudanum include paregoric (a drug to treat diarrhea), morphine and heroin. For centuries, opium was…
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Show more- Rubella vaccine A vaccine designed to prevent rubella, or German measles. German measles was once seen merely as a child's…
- Hemangioma, hepatic A common benign tumor of the liver made up of small blood vessels. Hepatic hemangioma is the most common…
- Accessory neuropathy Disease of the accessory nerve which is the eleventh cranial nerve. The accessory nerve supplies the…
- DEB (dystrophic epidermolysis bullosa) See: Dystrophic epidermolysis bullosa
- Disorder, seasonal affective (SAD) Depression that tends to occur (and recur) as the days grow shorter in the fall and winter. It is believed…
- Epidural anesthetic An anesthetic agent injected into the epidural space, the space outside the dura -- the outermost, toughest…
- Hematuria, microscopic Blood in the urine that is visible only under a microscope. There is so little blood that it cannot be seen…
- Antivenin Antibodies created in the blood of a horse or sheep when the animal is injected with snake venom. Antivenin…
- High-grade lymphoma A lymphoma that grows and spreads quickly but has a better response to anticancer drugs than that seen with…
- Bilharziasis A parasite infection by a trematode worm acquired from infested water. Also known as schistosomiasis. Species…
- Disease, Still See: Arthritis, systemic-onset juvenile rheumatoid
- Hallux What the ancient Romans called the big toe. Since hallux was a good enough word for the big toe among the…