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).
NREM sleep
Sleep: NREM (non-rapid eye movement) sleep is dreamless sleep. During NREM, the brain waves on the electroencephalographic (EEG) recording are typically slow and of high voltage, the breathing and heart rate are slow and regular, the blood…
Read the definitionRandom terms
Show more- Infection, rotavirus Rotavirus: A leading cause of severe winter diarrhea in young children. Each year, rotavirus (RV) causes an…
- Sinuous Curving in and out; in a serpentine, wavy form; winding. From the Latin noun 'sinus,' which means 'curve…
- Septic Infected, or denoting infection. For example, septic shock is shock caused by infection.
- Bladder infection Infection of the urinary bladder. Some people are at more risk for bladder and other urinary tract infections…
- Hypoglycemia Hypoglycemia: Low blood sugar (glucose). When symptoms of hypoglycemia occur together with a documented blood…
- Cirrhosis and gray matter degeneration Bral gray matter, Alpers: A progressive disease of the nervous system characterized by spasticity…
- Cheilitis Inflammation of the lips or of a lip. Cheilitis can also be spelled chilitis. Angular cheilitis is…
- Vitamin E Alpha-tocopherol, an antioxidant vitamin which binds oxygen free radicals that can cause tissue damage…
- Gerstmann-Straussler syndrome See: Gerstmann-Straussler-Scheinker syndrome
- Pallister-Killian syndrome A condition with multiple malformations at birth and mental retardation due to isochromosome 12p mosaicism…
- Osteoarthropathy Any disease of the bones and joints. From osteo-, bone + -arthro-, joint, + pathy, disease
- Iris The iris is the circular, colored curtain of the eye. Its opening forms the pupil. The iris helps regulate…