MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
About MedicalVocabulary.org
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).
Niemann-Pick disease
A biochemical disorder affecting a lipid (fat) called sphingomyelin, resulting usually in progressive enlargement of the liver and spleen (hepatosplenomegaly), 'swollen glands' (lymphadenopathy), anemia and mental and physical…
Read the definitionRandom terms
Show more- Ciliary neuralgia A distinctive syndrome of headaches, better known today as cluster headache. There are two main clinical…
- Hepar The liver or a preparation made from it. The term hepar is not often used today. It is a direct borrowing of…
- Intrinsic 1. An essential or inherent part of a something such as a structure.2. Coming from within, from the inside…
- Nat'l Institute of Diabetes, Digestive and Kidney Y Diseases (NIDDK): One of the National Institutes of Health in the U.S., the NIDDK has a multisystem name…
- Clinical aspirin resistance The inability of aspirin to protect a person from cardiovascular events such as heart attacks and strokes
- Stickler syndrome A relatively common genetic disorder characterized by very flexible (hyperextensible) joints, typical facial…
- African-American See: African American
- Exocrine gland A gland that secretes a substance out through a duct. The exocrine glands include the salivary glands, sweat…
- Rash, butterfly Rash, butterfly: A red, flat facial rash over the bridge of the nose. Over half of patients with systemic…
- Canine genome See: Dog genome
- Thyrocalcitonin A hormone, also called calcitonin, produced by the thyroid gland that lowers the levels of calcium and…
- Atheroma A fatty deposit in the intima (inner lining) of an artery, resulting from atherosclerosis. Also called an…