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).
Pneumomediastinum
Free air in the mediastinum (space betweens the lungs) which may give rise to pneumothorax or pneumopericardium and compromise the lungs or heart.
Read the definitionRandom terms
Show more- Interventricular septum The stout wall separating the lower chambers (the ventricles) of the heart from one another. A hole in the…
- Iatric Relating to medicine or a physician. Iatric systems are medical systems. From the Greek iatrikos (medical)…
- Strain 1. An injury to a tendon or muscle resulting from overuse or trauma. 2. A hereditary tendency that originated…
- Susceptibility genes, breast cancer Inherited factors that predispose to breast cancer. Put otherwise, these genes make one more susceptible to…
- Cryo-EM Cryo-electron microscopy
- Tzanck smear See Tzanck test
- Summer cold A popular term for hay fever. Although the symptoms of a 'summer cold' may be similar to those of a real…
- Ephelides The plural of ephelis, a type of freckle. Ephelis and ephelides are among the many medical terms that are…
- Clavus Synonymous with corns. The word 'clavus' is the Latin word for nail
- Mutation, nonsense A mutation (a change) in a base in the DNA that prematurely stops the translation (reading) of messenger RNA…
- Spasticity A state of increased tone of a muscle (and an increase in the deep tendon reflexes). For example, with…
- Audiometry The measurement of hearing.