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).
Spider bites
Bites from spiders. These are usually irritating, but not poisonous. Localized reddening and swelling are common and pass within a few days. A few spiders are poisonous, in the US notably the black widow and brown recluse (brown fiddler)…
Read the definitionRandom terms
Show more- Diffuse mastocytosis A form of mastocytosis in which the entire skin is thickened and leathery with generalized reddening and…
- Shunt, transjugular, intrahepatic, portosystemic A shunt that drains fluid from the cerebral ventricle into the abdomen.
- Lymphedema, congenital See: Congenital lymphedema
- Hypoxic Pertaining to hypoxia, a subnormal concentration of oxygen.
- Papillomatosis, juvenile laryngeal Juvenile laryngeal papillomatosis involves the growth of numerous warty growths on the vocal cords in…
- Stereotactic radiotherapy Radiation therapy in which a number of precisely aimed beams of ionizing radiation coming from different…
- Belt, seat A belt used to hold an individual in their seat. Motor vehicle accidents are the leading cause of death for…
- Maculopathy Any pathologic condition or disease of the macula, the small spot in the retina where vision is keenest. Also…
- TTR The gene that encodes transthyretin, a plasma protein consisting of 127 amino acids that binds retinol and…
- Retinal vein, central The blood vessel that carries blood away from the retina of the eye. The counterpart to the central retinal…
- CA 19-9 A tumor marker initially found in colorectal cancer patients, but subsequently also identified in patients…
- Pulmonary function test A test designed to measure how well the lungs are working. Pulmonary function tests (PFTs) gauge how the…