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).
Cancer, melanoma
A skin cancer that begins in cells called melanocytes that can grow together to form benign (not cancerous) moles. A change in size, shape, or color of a mole can be a sign of melanoma. It can be cured if detected early, before spread…
Read the definitionRandom terms
Show more- Medical word origin See: Medical etymology
- Clinical psychology A professional specialty concerned with diagnosing and treating diseases of the brain, emotional disturbance…
- Placenta, low Location of the placenta in the lower part of the uterus (womb) so that the placenta partially or completely…
- Hepatitis E virus The agent responsible for hepatitis E. Abbreviated HEV. For more information, see: Hepatitis E
- Brachmann-de Lange syndrome See: de Lange syndrome
- Nocebo A negative placebo effect as, for example, when patients taking medications experience adverse side effects…
- Frenulum A small structure that has a restraining function. For example, the lingual frenulum attaches the tongue to…
- Split personality Multiple personality disorder, a neurosis in which the personality becomes dissociated into two or more…
- Varicella rash Rash: Varicella (chickenpox) is characterized by a rash, often the first sign of the disease. The rash of…
- Vaginosis, bacterial See: Bacterial vaginosis
- Ragweed Any of a number of weedy composite herbs that produce a pollen that is a frequent cause of allergies. Of all…
- Hyaline membrane disease A respiratory disease of the newborn, especially the premature infant, in which a membrane composed of…