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).
Sleep talking
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- Blood urea nitrogen Medically called hematuria, blood in the urine can be microscopic or gross. Evaluating hematuria requires…
- Breast infection Infection of breast tissue usually caused by bacteria, most often staph (Staphylococcus aureus), which are…
- Prostatic hyperplasia, benign See: Benign prostatic hyperplasia.
- Syndrome, congenital central hypoventilation See: Congenital central hypoventilation syndrome
- Succenturiate In anatomy 'succenturiate' means substituting for or accessory to an organ. For example, see Succenturiate…
- Syndrome, Zellweger A genetic disorder, also called the cerebrohepatorenal syndrome, characterized by the reduction or absence of…
- OMS (World Health Organization) In medicine, the person who is ready to respond, the one on duty. As in "Who is the doctor on call this…
- Bayes' theorem See: Bayes theorem
- Parathyroidectomy Parathyroidectomy: Surgical removal of one or more of the parathyroid glands. Parathyroidectomy is usually…
- Osteoclast A cell that nibbles at and breaks down bone and is responsible for bone resorption. Osteoclasts are large…
- Science (journal) A weekly journal concerning science. Science was founded in 1880 by one of the world's most famous…
- Juvenile rheumatoid arthritis See: Arthritis, systemic-onset juvenile rheumatoid