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).
Arcuate nucleus
A collection of neurons (nerve cells) in the hypothalamus of the brain. Some arcuate neurons contain dopamine and act to inhibit the release of the hormone prolactin by the pituitary gland. Other arcuate neurons contain a substance called…
Read the definitionRandom terms
Show more- Infant iron supplementation Iron is included in most infant formulas. Therefore, there is no evidence that iron supplementation is…
- SAD A sore on a horse caused by an ill-fitting saddle. Also called a saddle sore.
- System, immune A complex system that is responsible for distinguishing us from everything foreign to us, and for protecting…
- Defect, enzyme An abnormality in the protein (enzyme) important in catalyzing a normal biochemical reaction in the body…
- Shell shock The World War I name for what is known today as post-traumatic stress, this is a psychological disorder that…
- History, medical See: Medical history
- Gene, Y-linked A gene on the Y chromosome. (Y-linkage is analogous to X-linkage (the presence of a gene on the X chromosome)…
- Genetic screening Testing a population to identify individuals at risk for a genetic disease or for transmitting it. Newborns…
- Teratogen, coumadin as The anticoagulant ('blood- thinner') coumadin is a known teratogen, an agent that can disturb the development…
- Acute renal failure Sudden and often temporary loss of kidney function. Also called acute kidney failure. As opposed to chronic…
- Interstitial Pertaining to being between things, especially between things that are normally closely spaced. The word…
- Kerato- Inflammation of the eye involving both the cornea and the conjunctiva. Keratoconjunctivitis can be due to…