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).
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Show more- Dilator A device used to stretch or enlarge an opening. Patients with scarring of the muscular tube through which…
- Giardia lamblia Giardia lamblia: A parasite responsible for a contagious form of diarrhea. The parasite is most commonly…
- Peccant Unhealthy. Causing illness or disease. Peccant is one of those rarely used but apt words. The behaviors --…
- Spider bites Bites from spiders. These are usually irritating, but not poisonous. Localized reddening and swelling are…
- Ophthalmopathy Any eye disease. External ophthalmopathy may refer to any disease of the eyelid, cornea, conjunctiva, or eye…
- Prion A disease-causing agent that is neither bacterial nor fungal nor viral and contains no genetic material. A…
- HIV Acronym for the Human Immunodeficiency Virus, the cause of AIDS (acquired immunodeficiency syndrome). HIV has…
- Stress exercise thallium scan Stress exercise thallium scan: A method of examining the heart to obtain information about the blood supply…
- Galen Greek physician and philosopher (born about 129 AD, died about 210 AD) known among other things for his…
- Nerve A bundle of fibers that uses chemical and electrical signals to transmit sensory and motor information from…
- Sphingomyelin lipoidosis Also called Niemann-Pick disease, this is a disorder of the metabolism of a lipid (fat) called sphingomyelin…
- Stiff baby syndrome A genetic disorder also known as hyperexplexia in which babies have an exaggerated startle reflex (reaction)…