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).
Alpha-synuclein
One in a family of structurally related proteins that are prominently expressed in the central nervous system. Aggregated alpha-synuclein proteins form brain lesions that are hallmarks of some neurodegenerative diseases…
Read the definitionRandom terms
Show more- Hair of the dog An alcoholic chaser reputed to relieve a hangover, usually needed the morning after imbibing too much…
- Amsler grid While conducting an eye examination, the eye care professional may ask the patient to look at an Amsler grid…
- Antiprotozoal drug Something that destroys protozoa or inhibits their growth and ability to reproduce. A few of the protozoa of…
- Coronavirus An agent that inhibits the action of the enzyme cox-1 (cyclooxygenase-1). The common anti-inflammatory drugs…
- Dyspepsia Dyspepsia: Dyspepsia refers to a condition (disease) in which there are upper abdominal symptoms which may…
- LQTS The long QT syndrome. See Long QT syndrome
- Amenia Better known as amenorrhea, amenia is the absence or cessation of menstruation. Amenorrhea is conventionally…
- Comedo The primary sign of acne consisting of a dilated (widened) hair follicle filled with keratin squamae (skin…
- Anorexic 1. Pertaining to anorexia, lack of appetite.2. A drug or other agent that causes anorexia and so diminishes…
- Interleukins Substances used in biological therapy. Interleukins stimulate the growth and activities of certain kinds of…
- Coarctation A narrowing, a stricture, a constriction. Although the best known coarctation is of the aorta, any artery can…
- Perforation, nasal septum A hole in the nasal septum, the wall inside the nose that runs down the middle dividing it into two sides…