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).
Rupture of appendix
A break or tear in the appendix, usually due to appendicitis. Also called perforation of the appendix. Rupture of appendix can lead to a periappendiceal abscess (a collection of infected pus) or diffuse peritonitis (infection of the entire…
Read the definitionRandom terms
Show more- Papilledema Swelling of the head of the optic nerve, a sign of increased intracranial pressure. The optic nerve head…
- Human herpesvirus 5 See cytomegalovirus.
- Encephalitis, St. Louis A disease caused by a virus (first observed in Illinois in 1932) transmitted from birds to the common Culex…
- Flu vaccine, nasal-spray See: Nasal flu vaccine
- Aldrex Trade name of the insecticide aldrin. See: Aldrin and dieldrin
- Ocular Having to do with the eye. In a microscope, the lens closest to the eye is termed the ocular (the eyepiece)…
- Subdural hematoma Bleeding into the space between the dura (the brain cover) and the brain itself. This space is called the…
- Syndrome, Achoo A disorder characterized by nearly uncontrollable paroxysms of sneezing provoked in a reflex fashion by the…
- Onchocerciasis River blindness, a disease caused by a parasitic worm (Onchocerca volvulus) which is transmitted to persons…
- Elbow, tennis A painful injury to the tendon that is attached to the outer part of the elbow due to repetitive twisting of…
- Roentgen ray Term coined around 1890 that preceded X-ray and is now synonymous with it. Named for Wilhelm Roentgen, a…
- Migraine aura Sensory phenomena that may occur before a migraine. Visual auras may include flashing lights, geometric…