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, brain
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- Dermatopathy Any disease of the skin. Synonymous with dermopathy
- Angiotensin II receptor blocker A medication that blocks the action of angiotensin II, permitting the blood vessels to relax and dilate…
- Prepuce, inflammation of the Inflammation of the prepuce (the foreskin of the penis) is called posthitis. In the uncircumcised male…
- Plano- Flat. A lens that is planoconvex is flat on one side and convex on the other
- Nerve cell See: Neuron
- Blastocyst A thin-walled hollow structure in early embryonic development that contains a cluster of cells called the…
- Vesicate A substance that causes tissue blistering. Also referred to as a vesicant.
- Thymosin One of several polypeptide hormones secreted by the thymus that control the maturation of T cells. They are…
- Nerve, sciatic The largest nerve in the body, the sciatic nerve begins from nerve roots in the lumbar part of the spinal…
- Cyst, thyrolingual See: Thyroglossal cyst
- Diseases, Infectious, Nat'l Inst of Allergy & Allergy and (NIAID): This is one of the National Institutes of Health in the U.S. In formal terms, the…
- Necrosis The death of living cells or tissues. Necrosis can be due, for example, to ischemia (lack of blood flow)…