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).
Stenosis, aortic
Narrowing (stenosis) of the heart valve between the left ventricle of the heart and the aorta. This narrowing impedes the delivery of blood through the aorta to the body and makes it tough for the heart to carry out this Herculean task. A…
Read the definitionRandom terms
Show more- Juxta- The prefix "juxta-" comes from the Latin preposition meaning near, nearby, close. Juxtaarticular is composed…
- FAS gene A gene that encodes one of several proteins important to apoptosis, the normal process through which cells…
- Foreskin, tight See Phimosis
- ZIP code, protein An informal name for a molecular cell biology system of signals or 'address tags' that guide the movement of…
- Hansen's disease See: Hansen disease
- Hyper-IgD syndrome A genetic disorder characterized by recurring attacks of chills and fever that usually start before the first…
- Muscle, piriformis A muscle that begins at the front surface of the sacrum (the V-shaped bone between the buttocks at the base…
- Abortive polio Abortive polio is a minor illness. It accounts for 80-90% of clinically apparent cases of polio infection…
- RNAi Abbreviation for RNA interference. See RNA interference
- Ehlers-Danlos syndrome See: Ehlers-Danlos syndrome, dermatosparaxis type.
- Whitmore's disease An infectious illness, also called melioidosis, that is most frequent in Southeast Asia and Northern…
- Paraquat A toxic chemical widely used as an herbicide (plant killer), primarily for weed and grass control. Paraquat…