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).
Stethoscope
An instrument used to transmit low-volume sounds such as the heartbeat (or intestinal, venous, or fetal sounds) to the ear of the listener. A stethoscope may consist of two earpieces connected by means of flexible tubing to a diaphragm…
Read the definitionRandom terms
Show more- Liver cancer, childhood See: Childhood liver cancer
- Bronchoscope A thin, flexible instrument used to view the air passages of the lung
- Microphallus An abnormally small penis. Also called micropenis. In medical practice, the dimension of the penis that is…
- Fibrillation, auricular Essentially the same as atrial fibrillation
- Encephalitis, eastern equine See: Eastern equine encephalitis
- Appendiceal Relating to the appendix. As, for example, an appendiceal abscess. Perforation of the appendix can lead to a…
- Necrobiosis lipoidica See: Necrobiosis lipoidica diabeticorum
- Shock, secondary Shock that occurs as a side effect of another problem, such as a crushing injury or heart attack.
- Bisexual An individual who engages in both heterosexual and homosexual sexual relations. Bisexual can also refer to…
- Adenosine triphosphate An important carrier of energy in cells in the body and a compound that is important in the synthesis (the…
- Fraction, ejection The portion of blood that is pumped out of a filled ventricle as a result of a heartbeat. The heart does not…
- Sign, Gottron A scaly, patchy redness over the knuckles seen in patients with dermatomyositis, an inflammatory muscle…