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).
SPF
Protection factor): A number on a scale for rating sunscreens. SPF stands for Sun Protection Factor. SPF numbers on a package can range from as low as 2 to as high as 60. These numbers refer to the product's ability to screen or block out…
Read the definitionRandom terms
Show more- Thalassemia major The dire disease also known as beta thalassemia. The clinical picture of this form of anemia was first…
- Juxtapyloric The prefix 'juxta-' comes from the Latin preposition meaning near, nearby, close. Juxtapyloric thus means…
- Bacteria Single-celled microorganisms which can exist either as independent (free-living) organisms or as parasites…
- Schistosoma japonicum A species of trematode worm that parasitizes humans and that (like S. mansoni) causes liver and…
- Deficiency, adenosine deaminase (ADA) A genetic (inherited) condition that results in a immune deficiency disorder called severe combined…
- Mumps immunization The standard MMR vaccine is given to prevent measles, mumps and rubella (German measles). The MMR vaccine is…
- Debride To remove dead, contaminated or adherent tissue or foreign material. The purpose of wound debridement is to…
- Ligament, anterior cruciate See: Anterior cruciate ligament
- Chemokine One of a large group of proteins that act as lures and were first found attracting white blood cells. The…
- Therapy, biological Treatment to stimulate or restore the ability of the immune (defense) system to fight infection and disease…
- Tarsal gland See: Meibomian gland
- Lymphangioleiomyomatosis A structure consisting of a collection of blood vessels and lymph vessels that are overgrown and clumped…