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).
Premature systole
See: Extrasystole
Read the definitionRandom terms
Show more- System, autonomic nervous Part of the nervous system that was once thought to be functionally independent of the brain. The autonomic…
- Belt, seat A belt used to hold an individual in their seat. Motor vehicle accidents are the leading cause of death for…
- Male genitalia The genital organs of the male. These are usually separated by convention into the external and internal…
- Microorchidism Abnormally small testes. To determine if the testes are too small, a device called an orchidometer is used…
- Infant mineral requirements Minerals (calcium, phosphorus, magnesium, iron, iodine, copper and zinc) and trace elements (manganese…
- Legal medicine The branch of medicine that deals with the application of medical knowledge to legal problems and legal…
- Beau-Reil cross furrows See: Beau's lines
- DNA, satellite DNA that contains many tandem (not inverted) repeats of a short basic repeating unit. Satellite DNA is…
- AAA Abdominal aortic aneurysm
- Altitude, high >High altitude: 8,000 - 12,000 feet (2,438 - 3,658 meters); >Very high altitude: 12,000 - 18,000 feet (3,658…
- Hereditary mixed polyposis syndrome (HMPS) A cancer family syndrome characterized by the development of a variety of different types of polyps in…
- Enediyne A very potent and naturally occurring antibiotic that acts by cleaving DNA. The adverse effects of enediynes…