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).
Fissure
A cleft or groove. A fissure can be normal or abnormal. A fissure in the cerebral cortex is a normal feature. It is a deep fold that involves the entire thickness of the brain wall. A fissure in the anus is distinctly abnormal. It is a…
Read the definitionRandom terms
Show more- Blood cleaner A process designed to eliminate most pathogens -- viruses, bacteria and fungi -- from donated blood. The…
- Microvascular Pertaining to the microvasculature, the portion of the vasculature of the body consisting of the smaller…
- Open charting The practice of making medical charts available to the patient
- Wymmin An alternate spelling of wimmin
- Gibbon heart-lung machine The first heart-lung machine. Named for the American physician John H. Gibbon who built it in 1937. This…
- Sleep, rapid eye movement Sleep, rapid eye movement: REM sleep is the portion of sleep when there are rapid eye movements (REMs)…
- Labia majora The larger (major) outside pair of labia (lips) of the vulva (the female external genitalia).
- Fluctuating rib One of the last two ribs. A rib is said to be 'fluctuating' if it does not attach to the sternum (the breast…
- Macrocytic 1. Any abnormally large cell. The opposite of macrocytic is microcytic (an abnormally small cell). 2. An…
- Psychotropic medication Any medication capable of affecting the mind, emotions, and behavior. Some medications such as lithium, which…
- Status epilepticus An epileptic seizure that lasts more than 30 minutes; a constant or near-constant state of having seizures…
- Neuritis Inflammation of nerves.