MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Environment
The sum of the total of the elements, factors and conditions in the surroundings which may have an impact on the development, action or survival of an organism or group of organisms. The environment is as opposed to genetics. We are the…
Read the definitionRandom terms
Show more- Artery, central retinal The blood vessel that carries blood into the eye and supplies nutrition to the retina. The counterpart to the…
- Cross-section In anatomy, a cross-section is a transverse cut through a structure or tissue. The opposite of a…
- RWI Recreational water illness
- United States Public Health Service The agency responsible for the public health of the American people. The Public Health Service (PHS)…
- Child urine infection See: Urinary tract infection in children
- Deficiency, fatty alcohol: NAD+ oxidoreductase Also known as the Sjogren-Larsson syndrome, this is a genetic (inherited) disease usually characterized by a…
- Palatine bone A bone behind the maxilla which enters into the formation of the hard palate (hence, the name 'palatine')…
- Procedure, Whipple See: Whipple procedure
- False positive A result that is erroneously positive when a situation is normal. An example of a false positive: a…
- Thoraces Plural of thorax.
- OR (abbreviation) Stands for 'operating room'. A facility equipped for performing surgery. OR is sometimes written O.R.
- Cholangiogram A radiologic procedure used to look at the gallbladder and bile ducts. See also: Intravenous cholangiogram.