MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
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- Inch In length, 1/12th of foot or 1/36 of a yard or, metrically, 2.54 centimeters. The inch, along with the foot…
- Fomentation A quaint old term for the application of hot packs or the substance so applied. From the Latin 'fovimentum'…
- Acquired epileptiform aphasia See Landau-Kleffner syndrome
- Internal jugular vein The deeper of the two jugular veins in the neck that drain blood from the head, brain, face and neck and…
- Carbolic acid A synonym of phenol. In dilute solution, an antimicrobial agent. First used to clean wounds and dress them by…
- Coxa vara Inward curvature of the hip. Malformation of the hip at birth, such as coxa vara, can increase one's risk for…
- Urinary calculus A stone in the urinary tract. The word 'calculus' in Latin means 'a pebble.' Pebbles were once used for…
- Dystonia, cranial A term used to describe dystonia that affects the muscles of the head, face, and neck. Oromandibular dystonia…
- Dowager's hump An abnormal outward curvature of the vertebrae of upper back. Compression of the front (anterior) portion of…
- EEE Eastern equine encephalitis
- Factor, rheumatoid Rheumatoid factor is an antibody that is measurable in the blood. It is commonly used as a blood test for the…
- Scale, skin A thin piece of the outermost layer of skin resembling a fish scale. They represent a heaping up of the…