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 contraction
See: Extrasystole
Read the definitionRandom terms
Show more- Spine, slipped See: Spondylolisthesis
- Vessel, afferent A vessel that carries blood toward the heart. A vein or venule
- Therapy, family See: Family therapy
- Vater, papilla of See: Ampulla of Vater
- Achilles tendon A tough sinew that attaches the calf muscle to the back of the heel bone. The Achilles tendon is one of the…
- Synaptic cleft The tiny space between two nerve cells across which the neurotransmitter acetylcholine diffuses
- Cardiomyopathy Disease of the heart muscle (the myocardium). From the Greek roots: 'cardio-', heart + 'mys', muscle +…
- Lipids Another word for 'fats.' (Please see the various meanings of Fat.) Lipids can be more formally defined as…
- Introitus, facial canal In anatomy, an introitus is an entrance, one that goes into a canal or hollow organ. The introitus of the…
- Contraction, uterine The tightening and shortening of the uterine muscles. During labor, contractions accomplish two things: (1)…
- Malnutrition A term used to refer to any condition in which the body does not receive enough nutrients for proper…
- Cervix The cervix is the lower, narrow part of the uterus (womb). The uterus, a hollow, pear-shaped organ, is…