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).
Syndrome, trisomy 21
A common chromosome disorder, often called Down syndrome, due to an extra chromosome number 21 (trisomy 21). The chromosome abnormality affects both the physical and intellectual development of the individual. Trisome 21 (Down) syndrome is…
Read the definitionRandom terms
Show more- Beaufort wind scale A widely used wind force scale whih is a simple numerical relationship to wind speed based on an observation…
- Antean Exceptionally strong or large. A multi-vitamin pill may, for example, be of Antean proportions. After…
- Disease, Bernard-Soulier Nt platelet syndrome): This disease is a primary problem of platelets in which the platelets lack the ability…
- Aortic insufficiency Incomplete closure of the aortic valve resulting in aortic regurgitation, the return of blood from the aorta…
- Unwell Not well or in good health, ailing, sick, indisposed. For example, 'I am well-nigh choked with the sulfurous…
- Craniopagus parasiticus Conjoined twins joined at the head (craniopagus) in which a rudimentary head (with little or no body) is…
- Tummy 1. Babytalk for the stomach. The word tummy is derived from stomach.2. Slang for a paunch. A big tummy raises…
- Cry for help An expression of suicidal intent in the hope of receiving help and being rescued. A cry for help may take…
- Lichtenberg figures A fern-leaf pattern of reddish, painless marks on the skin that are a result of a skin reaction to a…
- Chemokinesis The response of a cell to a chemical that causes the cell to make some kind of change in its movement by…
- Restriction endonuclease An enzyme from bacteria that can recognize specific base sequences in DNA and cut (restrict) the DNA at that…
- Tarantismo See: Tarantism.