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- Melanoma, superficial spreading One of the four clinical types of malignant melanoma, the most common type in whites, typically presents as a…
- Shock, secondary Shock that occurs as a side effect of another problem, such as a crushing injury or heart attack.
- Leukemia, hairy cell See: Hairy cell leukemia
- Azotemia A higher than normal blood level of urea or other nitrogen containing compounds in the blood. The hallmark…
- Cancer, esophageal See: Esophageal cancer
- Electrolysis Electrolysis: Permanent removal of body hair, including the hair root, with an electronic device. While it is…
- Phalangeal Pertaining to a phalanx (a bone in the finger or toe)
- Scan, helical CAT A conventional computerized axial tomography scan (CAT scan or CT scan) is an x-ray procedure which combines…
- Medical jurisprudence The branch of the law that deals with the application of law to medicine or, conversely, the application of…
- P arm of a chromosome The short arm of a chromosome. The 'p' comes from the French 'petit' meaning small. All human chromosomes…
- Myoclonic seizure A seizure characterized by jerking (myoclonic) movements of a muscle or muscle group, without loss of…
- HSA 1. In the US, Health Saving Account.2. Human serum albumin