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).
Systole, premature
See: Extrasystole
Read the definitionRandom terms
Show more- Tay-Sachs disease A genetic metabolic disorder caused by deficiency of the enzyme hexosaminidase A (hex-A) that results in a…
- Foramen A natural opening. Although a foramen is usually through bone, it can be an opening through other types of…
- Uterine tube Also called the Fallopian tube. There are two Fallopian tubes, one on each side. They transport the egg from…
- Septum, interventricular The wall separating the lower chambers (the ventricles) of the heart. A hole in the interventricular septum…
- Multi-infarct dementia Dementia brought on by a series of strokes. See Vascular dementia
- Bipolar I disorder Bipolar disorder in someone who has experienced depression and at least one episode of severe mania. Severe…
- Achondroplasia Our Achondroplasia Main Article provides a comprehensive look at the who, what, when and how of…
- Honey bee allergy Allergic reactions to stings of the honey bee (Apis mellifera). These reactions can include dizziness…
- Central core disease of muscle One of the conditions that produces 'floppy baby' syndrome. CCD causes hypotonia (floppiness) in the newborn…
- Peripheral insulin resistance Failure of target tissues to increase glucose disposal in response to insulin. See also: Insulin resistance
- Charles D. Kelman See: Phacoemulsification
- Therapy, estrogen replacement (ERT) Estrogen replacement therapy (ERT) is used to treat menopause. It reduces or stops the short-term changes of…