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).
Chemical reaction
A process in which one substance is transformed into another. Thousands of different types of chemical reactions occur in the body and are essential to its structure and function
Read the definitionRandom terms
Show more- Uvulopalatopharyngoplasty A type of operation designed to tighten up flabby tissues and enlarge the upper air passages. The operation…
- Zoll See: Zoll, Paul M.
- Neonatal lupus A lupus-like disease in a baby due to the transfer through the placenta of lupus antibodies from the mother…
- Ceteris paribus 1. Literally (in Latin), other things the same. 2. Figuratively, all else being equal (staying the same). 3…
- Choroid See: Melanoma, choroidal.
- Intussusception Intussusception: Telescoping (prolapse) of a portion of the intestine within another immediately adjacent…
- NIOSH The National Institute for Occupational Safety and Health, a US Federal agency responsible for conducting…
- Papilloma, intraductal A benign, wart-like growth that occurs in breast ducts
- Melanoma, malignant See: Melanoma
- Urethritis Inflammation of the urethra. (The urethra is the transport tube leading from the bladder to discharge urine…
- Cognitive dysfunction, chemotherapy-related See: Chemobrain
- Brachytherapy, coronary artery A slow heart rate, usually defined as less than 60 beats per minute. The word bradycardia is logically…