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).
Ulnar nerve
A major nerve in the upper extremity. The ulnar nerve begins in the lower cervical and upper thoracic portions of the spinal cord (from C7 to T1), travels via the brachial plexus down into the arm, through the cubital tunnel at the elbow…
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Show more- Axillary Pertaining to the cavity beneath the junction of the arm and the body, better known as the armpit. The word…
- Albumen The white of an egg, the part of the egg from which meringues are made. Albus in Latin is white. Not to be…
- Embolism, pulmonary The obstruction of the pulmonary artery or a branch of it leading to the lungs by a blood clot, usually from…
- Globus A word straight from the Latin, meaning (not unexpectedly) a globe or sphere. The word 'globus' is used in a…
- Implantation The act of setting in firmly. In embryology, implantation refers specifically to the attachment of the…
- Methylmercury An organic form of mercury that is highly toxic and is the main culprit in mercury poisoning. Methylmercury…
- Hygiene The science of preventive medicine and the preservation of health. From the name of Hygeia, the daughter of…
- Bayes theorem A probability principle set forth by the English mathematician Thomas Bayes (1702-1761). Bayes' theorem is of…
- Immunization, hepatitis A See: Hepatitis A immunization
- Syndrome, Martorell See: Takayasu disease
- Arcus senilis A cloudy opaque arc or circle around the edge of the eye, often seen in the eye of the elderly.
- Albinism, oculocutaneous An hereditary disorder characterized by deficiency of the pigment melanin in the eyes, skin and hair. The…