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).
Protean
Very variable; easily changing; or continually changing. Protean is not to be confused with protein (a member of a large group of chemicals necessary to and found in all living things). Protean refers to Proteus, the mythologic master of…
Read the definitionRandom terms
Show more- Intersex A group of conditions sometimes referred to as disorders of sexual development (DSDs) in which there is a…
- Thromboxane A substance made by platelets that causes blood clotting and constriction of blood vessels. There are two…
- Visual evoked response VER. A type of electrophysiologic retinal testing done to measure the electrical potential resulting from a…
- Lamin A Abbreviated LMNA. A gene on chromosome 1 that encodes a protein which is a key component of the membrane…
- Small inhibitory RNA See: siRNA
- Wheal A raised, itchy (pruritic) area of skin that is almost always an overt sign of allergy. Not all wheals are…
- Pulmonary stenosis, peripheral, with cholestasis Also known as arteriohepatic dysplasia or Alagille syndrome, this ia a genetic disorder characterized by…
- Fire gilding A perilous process for gold-plating in which an amalgam of mercury and gold is applied to an object and then…
- Barotrauma, sinus See: Sinus barotrauma
- Aminotransferase An enzyme that catalyzes the transfer of an amino group from a donor molecule to a recipient molecule. The…
- CABG Coronary artery bypass graft; and Coronary artery bypass grafting
- Tension, intravenous The pressure of the blood within a vein, the venous pressure