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).
Infectivity
The proportion of persons exposed to an infectious agent who become infected by it
Read the definitionRandom terms
Show more- Colorectal cancer family history See: Colon cancer family history
- Gorham disease Also called disappearing bone disease. Extensive loss of calcium from a single bone so that it cannot be seen…
- Reservoir of infection Any person, animal, plant, soil or substance in which an infectious agent normally lives and multiplies. The…
- Infection, group B strep Group B strep: Group B strep are a major cause of infections involving the pregnant woman and her newborn…
- Acute fatty liver of pregnancy Fatty liver of pregnancy: Liver failure in late pregnancy, usually from unknown cause. Acute fatty liver of…
- Crisis, midlife See: Midlife crisis
- Polygenic disease A genetic disease caused by the combined actions of two or more genes. Examples of polygenic diseases include…
- Internist A physician who specializes in the diagnosis and medical treatment of adults. This specialty, called internal…
- Lacuna A small pit, cavity, defect or gap
- Hernia, Velpeau Hernia, Velpeau: A Velpeau hernia is a femoral hernia in front of the femoral blood vessels in the groin. (A…
- Achillobursitis Pain due to inflammation of the bursa associated with the Achilles tendon. . The Achilles tendon is one of…
- Calcaneus The calcaneus is the heel bone. It is also called the os calcis. The calcaneus is a more or less rectangular…