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).
AV (atrioventricular)
AV is the standard medical abbreviation for atrioventricular, a combination that means pertaining to the atria (the upper chambers of the heart) and the ventricles (the lower chambers of the heart). For example, the AV node is an…
Read the definitionRandom terms
Show more- Seroconversion Seroconversion: The development of detectable antibodies in the blood directed against an infectious agent…
- Klumpke paralysis See: Klumpke palsy
- Staphylococcal scalded skin syndrome An infection of the skin with group II Staphylococcus aureus bacteria. The bacteria release toxins, causing…
- Electroretinography Electroretinography: Abbreviated ERG. A test in which the electrical potentials generated by the retina of…
- Disorders, lymphoproliferative Malignant diseases of the lymphoid cells and cells from the reticuloendothelial system (which take up and…
- Eye Institute, National ): One of the National Institutes of Health in the U.S., NEI's mission is to 'conduct and support research…
- Serial amnioreduction The repeated removal of large volumes of amniotic fluid by amniocentesis. The rationale for serial…
- Asian cholera A devastating and sometimes lethal disease with intense vomiting and profuse watery diarrhea was discovered…
- Reed-Sternberg cell A type of cell that appears in patients with Hodgkin's disease. The number of these cells increases as the…
- BCM Body cell mass
- Hepatocellular carcinoma A tumor in which the cancer starts during adulthood in cells in the liver. Also called adult primary liver…
- Extravasate To exude from or pass through the walls of a vessel into the surrounding tissues. Blood, lymph, or urine can…