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).
Primary liver cancer, adult
A tumor in which the cancer starts during adulthood in cells in the liver. Also called hepatocellular carcinoma. Primary liver cancer is different from cancer that has metastasized (spread) from another place in the body to the liver. The…
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Show more- Circumflex Curved like a bow. In anatomy, circumflex describes a structure that bends around like a bow. For example…
- Suicide prevention Diminishing the risk of suicide. It may not be possible to eliminate entirely the risk of suicide but it is…
- Menopause, surgical Menopause, surgical: Surgical menopause is, not unexpectedly, menopause induced by surgery. Surgical…
- Chondrogenesis imperfecta See: Achondrogenesis type II
- Reticulocyte count The number of reticulocytes (young red blood cells) circulating in blood, usually less than 1% of the total…
- B.i.d. (on prescription) Seen on a prescription, b.i.d. means twice (two times) a day. It is an abbreviation for 'bis in die' which in…
- Abdominal aneurysm An aneurysm situated within the abdomen (belly). An aneurysm is a localized widening (dilatation) of an…
- Biosafety level A specific combination of work practices, safety equipment, and facilities which are designed to minimize the…
- Elastin A protein that coil and recoils like a spring within the elastic fibers of connective tissue and accounts for…
- Latent Hidden, dormant, inactive. The virus that causes chickenpox remains latent after the initial attack of…
- Symptom of pregnancy See: Pregnancy symptom
- Percutaneous umbilical blood sampling (PUBS) In PUBS, a needle is inserted through the mother's abdominal wall and the uterine wall. Blood can be…