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).
Perianal abscess
An abscess next to the anus that causes tenderness, swelling, and pain on defecation
Read the definitionRandom terms
Show more- Aquaphobia An abnormal and persistent fear of water. Sufferers from aquaphobia experience anxiety even though they…
- Local treatment Treatment that affects the tumor and the area close to it.
- Syndrome, Wolff-Parkinson-White A condition caused by an abnormality in the electrical system of the heart which normally tells the heart…
- Islets of Langerhans Known as the insulin-producing tissue, the islets of Langerhans do more than that. They are groups of…
- Dendrite A short arm-like protuberance from a nerve cell (a neuron). Dendrites from neurons next to one another are…
- Tourette syndrome Tourette syndrome: A tic disorder characterized by the presence of chronic vocal and motor tics, probably…
- Index case A person who first draws attention to their family. For example, if my eye doctor discovers I have glaucoma…
- DEXA Dual energy X-ray absorptometry. See: DXA
- Clostridium perfringens A type of bacteria that is the most common agent of gas gangrene and can also cause food poisoning as well as…
- Medial meniscus of the knee The word 'meniscus' refers to a crescent-shaped structure. The medial meniscus of the knee is a thickened…
- Heterochromia Different colors
- Teleological Serving an ultimate purpose in its design. For example, 'What is the true purpose of the nose?' That is a…