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).
Ataxia-telangiectasia
A progressive neurodegenerative genetic disease characterized by cerebellar ataxia (incoordination and lack of balance), ocular telangiectasia ('red eyes' due to widening of small blood vessels in the conjunctiva), immune defects, and a…
Read the definitionRandom terms
Show more- Perimenopause The menopause transition. Perimenopause begins about 6 years before the natural menopause. This is a time…
- Disease, clinical A disease with clinical signs and symptoms that can be recognized. As distinct from a subclinical illness…
- DCIS See Pendred syndrome.
- Recurrent laryngeal nerve One of the best known branches of the vagus nerve, a very long nerve that originates in the brainstem. After…
- Visual acuity The clarity or clearness of the vision, a measure of how well a person sees. The ability to distinguish…
- Cyclothymia A form of bipolar disorder in which the mood swings are less severe. See also bipolar disease.
- Beaufort wind scale A widely used wind force scale whih is a simple numerical relationship to wind speed based on an observation…
- Joint aspiration A common benign childhood condition involving hypermobile joints (that can move beyond the normal range of…
- Septum, interventricular The wall separating the lower chambers (the ventricles) of the heart. A hole in the interventricular septum…
- Insomnia, fatal familial See Fatal familial insomnia
- Vaginal infection, bacterial See: Bacterial vaginosis
- Hemoglobin Hemoglobin: The oxygen-carrying pigment and predominant protein in the red blood cells. Hemoglobin forms an…