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).
Peak-flow meter
This hand-held device measures air flow (how fast air is blown out of the lungs). Patients can use peak-flow meters to measure their own air flow regularly. The use of a peak-flow meter allows patients to obtain a much earlier indication…
Read the definitionRandom terms
Show more- Acetylcholine A key chemical in neurons (nerve cells) that acts as a neurotransmitter and carries information across the…
- GERD Stands for Gastroesophageal Reflux Disease, a disorder in which there is recurrent return of stomach contents…
- T4 Thyroxine, a thyroid hormone. The number 4 is sometimes in subscript
- Hemopoietic See: Hematopoietic
- Fraction, ejection The portion of blood that is pumped out of a filled ventricle as a result of a heartbeat. The heart does not…
- Chronic tamponade A situation in which a chronic excess of fluid inside the pericardial sac and thickening of the pericardial…
- Stickler 1. Stickler, Gunnar B.. 2. Stickler syndrome. 3. With a small s, someone who insists upon some matter such as…
- Chondrogenesis imperfecta See: Achondrogenesis type II
- Superbug An informal term for a bacterium that has become resistant to antibiotics usually used to treat it, as…
- Double pneumonia Inflammation of both lungs. Medically called bilateral pneumonia
- Dystocia, placental See: Placental dystocia
- Intervention The act of intervening, interfering or interceding with the intent of modifying the outcome. In medicine, an…