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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Left atrium
The upper right chamber of the heart. The left atrium receives oxygenated blood from the lungs and pumps it down into the left ventricle which delivers it to the body. NTER>
Read the definitionRandom terms
Show more- Racemose aneurysm An aneurysm that looks like a bunch of grapes
- Malignant 1. Tending to be severe and become progressively worse, as in malignant hypertension. 2. In regard to a…
- Fire supplies kit The intensely painful burning sensation in the limbs and extremities caused by ergot, the consequence of a…
- Common hepatic duct The duct formed by the junction of the right hepatic duct (which drains bile from the right half of the…
- Childbed fever Fever due to an infection usually of the placental site within the uterus. The fever is also called…
- Tick typhus Also known as Rocky Mountain spotted fever, an acute febrile (feverish) disease initially recognized in the…
- Triptans (Triptan) Fear of the number 13. Written reference to this fear dates to the late 1800s. The term triskaidekaphobia…
- Palate The roof of the mouth. The front portion is bony (hard palate), and the back portion is muscular (soft palate)
- Cutaneous papilloma A small tag of skin that may have a stalk (a peduncle). Cutaneous papillomas may appear on the skin almost…
- Flood readiness Getting ready for a possible flood. Here are some basic steps to take to prepare well in advance for a…
- Pulseless disease Takayasu disease. Called pulseless disease because inflammation of blood vessels (vasculitis) can lead to…
- Cardiac conduction system The electrical conduction system that controls the heart rate. This system generates electrical impulses and…