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).
Chronic tamponade
A situation in which a chronic excess of fluid inside the pericardial sac and thickening of the pericardial sac progressively compress the heart and impair its performance. The excess fluid in the pericardial sac acts to constrict the…
Read the definitionRandom terms
Show more- Leuko- Prefix meaning white, as in leukocyte (white blood cell). Leuko- comes from the Greek 'leukos' meaning white…
- Nipple shield A cap or dome, usually made today of plastic (formerly, rubber), placed over the nipple and areola during…
- Electrophoretic Pertaining to electrophoresis, the separation of molecules according to their size and electrical charge by…
- Extrinsic 1. Not an essential or inherent part of a something such as a structure.2. Coming from the outside. Extrinsic…
- VBAC Vaginal Birth After Cesarian section. Although the abbreviation VBAC (pronounced VEE-back) does not appear in…
- IU (international unit) An international unit (IU) is an internationally accepted amount of a substance. This type of measure is used…
- Juvenile CML Juvenile chronic myelogenous leukemia. See: Juvenile myelomonocytic leukemia
- Policosanol A product derived from the waxy coating of sugar cane that lowers both the total cholesterol and the 'bad'…
- Fear of mirrors An abnormal and persistent fear of mirrors. Sufferers experience undue anxiety even though they realize their…
- Macrocytic 1. Any abnormally large cell. The opposite of macrocytic is microcytic (an abnormally small cell). 2. An…
- SV 40 See: SV40
- Post-traumatic stress disorder Stress disorder: A common anxiety disorder that develops after exposure to a terrifying event or ordeal in…