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).
Hepatitis A
Inflammation of the liver caused by the hepatitis A virus (HAV). HAV is usually transmitted from person to person by food or drink that has been contaminated with the stool of a person with hepatitis A. This type of transmission is called…
Read the definitionRandom terms
Show more- Medial collateral ligament (MCL) of the knee The knee joint is surrounded by a joint capsule with ligaments strapping the inside and outside of the joint…
- Ear ringing Together with other abnormal ear noises, ear ringing is medically called tinnitus. Tinnitus can arise in any…
- Testosterone A 'male hormone' -- a sex hormone produced by the testes that encourages the development of male sexual…
- Storm surge The onshore rush of sea or lake water caused primarily by the high winds that are associated with a…
- Scaling Abnormal shedding or accumulation of an upper layer of skin (the stratum corneum)
- Lentigo maligna melanoma See: Melanoma, lentigo maligna
- Ampulla In anatomy, a sac-like enlargement of a canal or duct. The ampulla of Vater is the enlargement of the ducts…
- ECST ECST stands for the exercise cardiac stress test, the most widely used cardiac (heart) screening test. In an…
- Antibody, antinuclear An unusual antibody that is directed against structures within the nucleus of the cell. Antinuclear…
- NCRR Stands for National Center for Research Resources, one of the Centers of the National Institutes of Health…
- Gap junction beta 2 See: GJB2
- Psychology The study of the mind and mental processes, especially in relation to behavior. There are a number of fields…