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).
Category five hurricane
A hurricane with winds greater than 155 mph (135 kt or 249 km/hr). Storm surge generally greater than 18 ft above normal. Complete roof failure on many residences and industrial buildings. Some complete building failures with small utility…
Read the definitionRandom terms
Show more- ERT (estrogen replacement therapy) Estrogen replacement therapy (ERT) is used to treat menopause. It reduces or stops the short-term changes of…
- Fibrous dysplasia, polyostotic The lateral (outside) and smaller of the two long bones in the lower leg between the knee and ankle. (The…
- Background radiation Radiation that comes from environmental sources including the earth's crust, the atmosphere, cosmic rays, and…
- Nasal-spray flu vaccine See: Nasal flu vaccine
- Keratin Protein in the upper layer of the skin, hair, nails and animal horns. The word keratin comes from the…
- Glaucoma, normal pressure See: Glaucoma, normal tension
- Photorefractive keratectomy (PRK) A kind of laser eye surgery designed to change the shape of the cornea to eliminate (or reduce) the need for…
- Spinal stenosis Narrowing of the spaces in the spine, resulting in compression of the nerve roots or spinal cord by bony…
- Elective In medicine, something chosen (elected). An elective procedure is one that is chosen (elected) by the patient…
- Tympany A hollow drum-like sound produced when a gas-containing cavity is tapped sharply. Tympany is heard if the…
- Patellar tendonitis A common injury to the patellar tendon. Also called patellar tendonopathy or jumper's knee because it often…
- Prontosil The first sulfa drug to be discovered. Largely of historic interest today. The discovery was made by the…