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).
Operon
A set of genes transcribed under the control of an operator gene. More specifically, an operon is a segment of DNA containing adjacent genes including structural genes, an operator gene, and a regulatory gene. An operon is thus a…
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Show more- Good Samaritan law A law designed to protect a Good Samaritan from legal liability. Such laws usually specify that whoever in…
- Learning disability Learning disability: A childhood disorder characterized by difficulty with certain skills such as reading or…
- Pavlovian conditioning The Russian physiologist Ivan Petrovich Pavlov (1848-1936) conditioned dogs to respond in what proved to be a…
- Muscles, abdominal A large group of muscles in the front of the abdomen that assists in the regular breathing movement and…
- Random number table A table of numbers generated in an unpredictable, haphazard sequence. Tables of random numbers are used to…
- Test, glucose tolerance A blood test done to make the diagnosis of diabetes mellitus. The test may also be done for other purposes…
- Typhoid fever Typhoid fever: An acute illness with fever caused by infection with the Salmonella typhi bacteria contracted…
- Arthritis, Reiter The combination of inflammation of the joints (arthritis), eyes (conjunctivitis), and GU (genitourinary)…
- Valgum See: Valgus
- Naturalistic study A type of study in which the researcher very carefully observes and records some behavior or phenomenon…
- Fourth ventricle >Lateral ventricles: The lateral ventricles are in the cerebral hemispheres, one in each hemisphere. Each…
- Clostridium perfringens A type of bacteria that is the most common agent of gas gangrene and can also cause food poisoning as well as…