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).
Ectoparasite
A parasite that lives on or in the skin but not within the body. Fleas and lice are ectoparasites. Infestation with an ectoparasite is called an ectoparasitosis
Read the definitionRandom terms
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- Paroxysmal lacrimation See: Crocodile tears syndrome
- Hormone, glucocorticoid A hormone that predominantly affects the metabolism of carbohydrates and, to a lesser extent, fats and…
- Papilliferous See: Papuliferous
- Fourth ventricle >Lateral ventricles: The lateral ventricles are in the cerebral hemispheres, one in each hemisphere. Each…
- Homosexuality Sexuality directed toward someone of the same sex
- Septate vagina A vagina that is divided, usually longitudinally, to create a double vagina. This situation can be easily…
- Headache, rebound Headaches experienced by those who have taken ergotamine or analgesic medications for migraines or other…
- Arachnodactyly Long spider-like fingers and toes, a frequent finding in Marfan syndrome, a heritable disorder of connective…
- Polyphenol A kind of chemical that (at least in theory) may protect against some common health problems and possibly…
- Pericardial Referring to the pericardium, the sac of fibrous tissue that surrounds the heart. The inner surface of the…
- Open-label trial A clinical trial in which researchers and participants know which drug or vaccine is being administered