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).
Co-stimulation
An event in the immune system involving the delivery of a second signal by an antigen-presenting cell. The second signal rescues the activated T cell from anergy (which is a state of immune unresponsiveness), allowing the T cell to produce…
Read the definitionRandom terms
Show more- Artery A vessel that carries blood high in oxygen content away from the heart to the farthest reaches of the body…
- Diabetes, brittle A type of diabetes when a person's blood glucose (sugar) level often swings quickly from high to low and from…
- Uterus, contraction of the The tightening and shortening of the uterine muscles. During labor, contractions accomplish two things: (1)…
- Negative calorie diet The Negative calorie diet is a weight loss concept based upon the premise that consumption of foods with a…
- Muscular dystrophy, Ullrich congenital A disorder evident at birth characterized by muscle weakness, contractures of multiple joints, and…
- Therapy, psychodynamic See: Psychodynamic therapy
- Hepatic transplant See: Liver transplant
- Ciguatoxin A seafood toxin that is acquired by eating fish that have consumed toxic single-celled marine organisms…
- Cubitus varus A deformity of the elbow resulting in a decreased carrying angle (so that, with the arm extended at the side…
- Supernumerary Beyond the normal number. Anything supernumerary is extra. A supernumerary chromosome is an extra one beyond…
- DRVs (Daily Reference Values) A deficiency of tears. The main symptom is usually a scratchy or sandy feeling as if something is in the eye…
- Proteinuria Excess protein in the urine. Some protein is normal in the urine. Too much means protein is leaking through…