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).
MedicAlert
A nonprofit emergency medical information service, known for its MedicAlert jewelry, particularly the bracelet, and its 24-hour emergency response center. MedicAlert was founded by Marion and Chrissie Collins in California. In 1953, when…
Read the definitionRandom terms
Show more- PEP The abbreviation PEP stands for a number of things in medicine including post-exposure prophylaxis…
- Disease, Alpers See: Alpers disease
- Transplant, corneal See: Corneal transplant
- Carbon dioxide content A measure of the bicarbonate level in the blood. The normal carbon dioxide content may vary somewhat from one…
- Vanishing twin A twin detected in early pregnancy that is miscarried, frequently by resorption, without clinical signs or…
- Retinal electrophysiologic testing See: Electrophysiologic retinal testing
- Craniotomy A surgical operation in which an opening is made in the skull.
- Cell, T See T cell
- Hippocampus An area buried deep in the forebrain that helps regulate emotion and memory. Functionally, the hippocampus is…
- Macules Small circumscribed changes in the color of skin that are neither raised (elevated) nor depressed. Macules…
- Substance, pressor See: Pressor substance
- Deafness, nonsyndromic A blood clot (thrombus) in a deep vein in the thigh or leg. The clot can break off as an embolus and make its…