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).
Gastric MALT lymphoma
A low-grade malignant lymphoma of the stomach associated with chronic infection by the bacterium H. pylori. Three-quarters of gastric MALT lymphomas regress after the eradication of H. pylori with antibiotics. The one-quarter that are…
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Show more- Poisoning, mercury The metallic element mercury is poisonous to humans. Mercury poisoning can occur in both acute and chronic…
- Sex before sports Sexual intercourse before an athletic event. A commonly held belief in sports is that athletes should not…
- Tache noire Black spot (in French), a small ulcer covered with a black crust at the site of a tick bite, characteristic…
- Agonist A drug that binds to a receptor of a cell and triggers a response by the cell. An agonist often mimics the…
- Pacemaker, internal A device that uses electrical impulses to regulate the heart rhythm or to reproduce that rhythm. An internal…
- Cellulitus Common misspelling of cellulitis
- Vomiting in pregnancy, excess Medically known as hyperemesis gravidarum, this is excessive vomiting in early pregnancy. By definition…
- Mucous Pertaining to mucus, a thick fluid produced by the lining of some tissues of the body. 'Mucus' without an 'o'…
- KSS Kearns-Sayre syndrome
- Gene, transporter A gene that allows drugs to enter cells or, in some cases, acts to keep them out. Transporter genes may…
- Teratogenic drugs A teratogen is an agent that can disturb the development of the embryo or fetus. Teratogens halt the…
- Alpha interferon A protein produced by the body in response to an infection. There are 3 major classes of interferon -- alpha…