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).
Vasoconstriction
Narrowing of the blood vessels resulting from contracting of the muscular wall of the vessels. The opposite of vasodilation
Read the definitionRandom terms
Show more- Inuit health See: Artic health
- Hormone, human chorionic gonadotropin A group of hormones, the most important being aldosterone, that regulate the balance of water and…
- Release, carpal tunnel A surgical procedure to relieve pressure exerted on the median nerve within the carpal tunnel (the carpal…
- Acute stress disorder The anxiety and behavioral disturbances that develop within a month of exposure to extreme trauma. The…
- Esophageal Pertaining to the esophagus
- Prostate specific antigen Prostate specific antigen: Widely known as PSA. See: PSA.
- Skin tag Skin tag: A small tag of skin that may have a stalk (a peduncle). Skin tags may appear on the skin almost…
- Interneuron A neuron that exclusively signals another neuron
- Fear of blushing An abnormal and persistent fear of blushing. Sufferers of this fear experience undue anxiety even though they…
- Disease, variant Creutzfeldt-Jakob Abbreviated vCJD. A human disease thought due to the same infectious agent as bovine spongiform…
- Beat, premature See: Extrasystole
- Stanley B. Prusiner See: Prusiner, Stanley B.