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).
Hydrocephalus, Macewen sign of
A sign to detect hydrocephalus (and brain abscess). Percussion (tapping) on the skull at a particular spot (near the junction of the frontal, temporal and parietal bones) yields an unusually resonant sound in the presence of hydrocephalus…
Read the definitionRandom terms
Show more- Seasonal affective disorder (SAD) See: SAD.
- Fava bean The broad bean to which many people react adversely with an acute hemolytic anemia with sudden breakup of red…
- Staph Very commonly used shortened form of Staphylococcus, a very common and important group of bacteria. See…
- MCP Membrane cofactor protein. A ubiquitous protein on the surface of cells that regulates complement and is…
- Total knee replacement Total knee replacement: A surgical procedure in which damaged parts of the knee joint are replaced with…
- McBurney's point McBurney's point is the most tender area of the abdomen of patients in the early stage of appendicitis…
- Myokymia Continuous involuntary muscle twitchings that give the appearance of wormlike rippling of muscle. The muscle…
- Subtelomeric Below the telomere, the end of a chromosome. For example, it has been reported that subtle subtelomeric…
- Operon A set of genes transcribed under the control of an operator gene. More specifically, an operon is a segment…
- Bee sting Stings from bees and other large stinging insects such as yellow jackets, hornets and wasps can trigger…
- Infectious mono See infectious mononucleosis.
- End-of-life assistant See: Doula (the second meaning)