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.
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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).
Rh factor
An antigen found in the red blood cells of most people: those who have Rh factor are said to be Rh positive (Rh+), while those who do not are Rh negative (Rh-) Blood used in transfusions much match donors for Rh status as well as for ABO…
Read the definitionRandom terms
Show more- Error, type II See: Error, beta
- Transposition, genetics The ability of genes to change position on chromosomes, a process in which a transposable element is removed…
- Interventional Pertaining to the act of intervening, interfering or interceding with the intent of modifying the outcome…
- Fear of blushing An abnormal and persistent fear of blushing. Sufferers of this fear experience undue anxiety even though they…
- FBN1 The fibrillin 1 gene. This gene is mutated in Marfan syndrome, the MASS syndrome, and related disorders of…
- Prelingual Before the development of speech and language. 'She showed that in prelingually deaf people (that is, those…
- Phalanx Anatomically, any one of the bones in the fingers or toes. (Plural: phalanges.) There are 3 phalanges (the…
- Tendon The tissue by which a muscle attaches to bone. A tendon is somewhat flexible, but fibrous and tough. When a…
- Open heart surgery Surgery in which the chest is opened and surgery is performed on the heart. The term 'open' refers to the…
- Long-chain-3-hydroxyacyl-CoA dehydrogenase def Cy: Acute fatty liver of pregnancy (AFLP) has been found to be associated in some cases with an abnormality…
- Wheezing A whistling noise in the chest during breathing when the airways are narrowed or compressed
- Syndrome, Waardenburg See Waardenburg syndrome