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).
Aneurysm, dissecting
An aneurysm is a localized widening (dilatation) of an artery, vein, or the heart. At the area of an aneurysm, there is typically a bulge and the wall is weakened and may rupture. The word 'aneurysm' comes from the Greek 'aneurysma'…
Read the definitionRandom terms
Show more- Hemostasis The stoppage of bleeding or hemorrhage. Also, the stoppage of blood flow through a blood vessel or organ of…
- Adductor spasmodic dysphonia A disorder in which sudden muscle spasms cause the vocal folds (or vocal cords) to slam together. See…
- Q.3h. On a prescription, every three hours
- Rapid eye movement sleep Sleep: Rapid eye movement sleep (REM) sleep is the portion of sleep when there are rapid eye movements…
- Nerve, second cranial Also known as the optic nerve. This nerve connects the eye to the brain and carries the impulses formed by…
- Test, auditory brainstem response A widely used test of the newborn baby as to their neurologic status and developmental progress. The…
- Toxic shock syndrome A grave condition occurring predominantly in menstruating women using tampons, toxic shock is characterized…
- Aneurysm, berry A berry aneurysm is a small outpouching (aneurysm) that looks like a berry and classically occurs at the…
- Intolerance, food Difficulty in digesting a food. Common offenders include milk products, wheat and other grains that contain…
- Pustulosis A highly inflammatory skin condition resulting in large fluid-filled blister-like areas (pustules)…
- VWM Leukoencephalopathy with vanishing white matter, an inherited brain disease that occurs mainly in children…
- Resectable Able to be removed (resected) by surgery