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).
Heart, right
The heart is composed functionally of two hearts - the right heart and the left heart. The right heart consists of the right atrium which receives deoxygenated blood from the body and the right ventricle which pumps it to the lungs. The…
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Show more- Prontosil The first sulfa drug to be discovered. Largely of historic interest today. The discovery was made by the…
- Alternative medical system A system of alternative medicine built upon a complete system of theory and practice. Often, such systems…
- Erotomania The false but persistent belief that one is loved by a person (often a famous or prominent person), or the…
- Line, single transverse palmar See: Simian crease
- Sphygmomanometer An instrument for measuring blood pressure, particularly in arteries. The two types of sphygmomanometers are…
- Eczema vaccinatum A common concern with smallpox vaccination involving the implantation of the vaccinia virus from the…
- Ophthalmoscope A lighted instrument, one of the most important tools of the physician, used to examine the interior of the…
- Single-payer health care A system of health care characterized by universal and comprehensive coverage. Single-payer health care is…
- Afferent Carrying toward. A vein is an afferent vessel since it carries blood toward from the heart. An afferent nerve…
- Periappendiceal Near the appendix. Perforation of the appendix can lead to a periappendiceal abscess (a collection of pus…
- Interferon Interferon: A naturally occurring substance that interferes with the ability of viruses to reproduce…
- Policy, Medigap See: Medigap policy>