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).
Fovea
In the eye, a tiny pit located in the macula of the retina that provides the clearest vision of all. Only in the fovea are the layers of the retina spread aside to let light fall directly on the cones, the cells that give the sharpest…
Read the definitionRandom terms
Show more- Omniscience All knowledge. Infinite awareness, understanding, and insight. Someone who (supposedly) possesses omniscience…
- Beat, premature See: Extrasystole
- Engram An enduring change in the brain postulated to account for the persistence of memory. The term 'engram' was…
- Fissure A cleft or groove. A fissure can be normal or abnormal. A fissure in the cerebral cortex is a normal feature…
- Hodgkin disease British crystallographer and Nobel Prize winner (1910-1994). Dorothy Crowfoot, as she was born, was educated…
- Fever, West Nile Fever, West Nile: A febrile disease caused by the West Nile virus that is transmitted from birds to the…
- Hamstring The prominent tendons at the back of the knee. They are the sidewalls of the hollow behind the knee. (This…
- Test, physiologic stress Although there can be a diversity of physiologic stress tests, this refers here to a physiologic cardiac…
- Glucose Glucose: The simple sugar (monosaccharide) that serves as the chief source of energy in the body. Glucose is…
- Oxygenate To add oxygen to any chemical or physical system, including the human body. Oxygenate can also refer to the…
- Angiotensin II receptor blocker A medication that blocks the action of angiotensin II, permitting the blood vessels to relax and dilate…
- Upregulation An increase in the number of receptors on the surface of target cells, making the cells more sensitive to a…