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).
Transforming principle
Name originally given to DNA. In 1944 Avery, MacLeod, and McCarty published their discovery that the transforming principle was DNA. In the early 1940s Oswald T. Avery and Maclyn McCarty, a colleague at the Rockefeller Institute Hospital…
Read the definitionRandom terms
Show more- Post-polypectomy After a polypectomy
- Steroid A general class of chemical substances that are structurally related to one another and share the same…
- Hypohidrotic Pertaining to hypohidrosis, too little sweating
- TTR The gene that encodes transthyretin, a plasma protein consisting of 127 amino acids that binds retinol and…
- Chromosomes The microscopically visible carriers of the genetic material. They are composed of deoxyribonucleic acid…
- Reticulocytosis An elevation in the number of reticulocytes (young red blood cells) in blood, a sign of unusually rapid red…
- Cardiovascular The circulatory system comprising the heart and blood vessels which carries nutrients and oxygen to the…
- OCG Oral cholecystogram
- Pediatric rheumatologist See: Urinary tract infection in children.
- Gene silencing A mechanism by which cells shut down large sections of chromosomal DNA. Gene silencing is done by…
- Smoldering leukemia A condition in which the bone marrow does not function normally. It does not produce enough blood cells. This…
- Medical helminthology The field of medicine that pertains to helminths (worms) capable of disease in people. For more about these…