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).
Microphthalmia
An abnormally small eye, a congenital malformation (birth defect) of the globe. The related term 'anophthalmia' means no eye and refers to absence of the globe and ocular tissue from the orbit. Microphthalmia may involve one or both eyes…
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Show more- Acupuncture Our Acupuncture Main Article provides a comprehensive look at the who, what, when and how of Acupuncture…
- Arrhythmia, sinus The normal increase in heart rate that occurs during inspiration (when you breathe in). This is a natural…
- Mortality rate, neonatal The number of children dying under 28 days of age divided by the number of live births that year. The…
- Pavlov pouch At different points along the dogs' digestive tracts, the Russian physiologist Ivan Petrovich Pavlov…
- Hallucination A profound distortion in a person's perception of reality, typically accompanied by a powerful sense of…
- Wasting 1. Gradual loss (for example, of weight), deterioration, emaciation. As in a wasting disease. 2. Excessive…
- Disease, Bornholm Bornholm disease is a temporary illness that is a result of virus infection. The disease features fever and…
- Blast phase Refers to advanced chronic myelogenous leukemia. In this phase, the number of immature, abnormal white blood…
- Mastoid The rounded protrusion of bone just behind the ear once thought to look like the breast. The word comes from…
- Isotopic Referring to an isotope, a form of a chemical element with the same atomic number as another element but…
- Penetrance The likelihood a given gene will result in disease. For example, if half (50%) of the people with the…
- Cerebrum The largest part of the brain. It is divided into two hemispheres, or halves. The word 'cerebrum' is the…