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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Polyuria
The excessive passage of urine (at least 2.5 liters per day for an adult) resulting in profuse urination and urinary frequency (the need to urinate frequently). Polyuria is a classic sign of diabetes mellitus that is under poor control or…
Read the definitionRandom terms
Show more- Heptad repeat A type of tandem repeat sequence in which a group of seven aminoacids occurs many times in a protein…
- Abdominal Relating to the abdomen, the belly, that part of the body that contains all of the structures between the…
- LAMB syndrome Acronym for Lentigines, Atrial myxomas, Mucocutaneous myxomas, and Blue nevi. Now included in the Carney…
- Collagenopathy Any one of a group of disorders that affect connective tissue, the tissue that supports the body's joints and…
- Gastric cancer Cancer of the stomach, the major organ that holds food for digestion. Worldwide, stomach cancer is the second…
- Siamese twin Twin: Identical (monozygotic) twins that did not separate fully from one another but are still partially…
- Glycohemoglobin Also known as glycosylated hemoglobin, hemoglobin to which glucose is bound, a measure of the long-term…
- Clitorectomy A surgical procedure in which all or part of the clitoris and sometimes also the labia are removed…
- NG tube See: Nasogastric tube
- Sitophilus granarius See: Granary weevil
- Rupture of appendix A break or tear in the appendix, usually due to appendicitis. Also called perforation of the appendix…
- Cholecyst The gallbladder. The word cholecyst is not much used today but it figures into a number of other terms to do…