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).
Vertebral rib
One of the last two ribs. A rib is said to be 'vertebral' if it does not attach to the sternum (the breast bone) or to another rib. There are usually 12 pairs of ribs in all. Each pair of ribs is attached to the building blocks of the…
Read the definitionRandom terms
Show more- Osteosarcoma A cancer of the bone that occurs predominantly in adolescents and young adults. It accounts for 5 percent of…
- Essential tremor Uncontrollable shaking (tremor) of the hands and head and sometimes other parts of the body. Essential tremor…
- Shy-Drager syndrome A mysterious progressive disorder of the central and sympathetic nervous systems, also called multiple system…
- Superior vena cava syndrome Superior vena cava syndrome: The symptoms that result from compression of the large vein that carries blood…
- Alvit Trade name of the insecticide dieldrin. See: Aldrin and dieldrin
- Asplenia The absence of a spleen or one that functions. (The spleen can be functionally destroyed, as occurs in…
- Portal vein A large vein that carries blood from the stomach and the intestines to the liver. The portal vein is formed…
- Hereditary angioedema A genetic form of angioedema. (Angioedema is also referred to as Quinke's disease.) Persons with it are born…
- Hemophobia An abnormal and persistent fear of blood. Sufferers of this very common phobia dread the sight of their own…
- Internal fixation A surgical procedure that stabilizes and joins the ends of fractured (broken) bones by mechanical devices…
- CD4 A large glycoprotein molecule found on the surface of T lymphocytes that serves as the receptor for HIV. The…
- Deficiency, GALT Lack of the enzyme called GALT (galactose-1-phosphate uridyl transferase) which causes the genetic metabolic…