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).
Vitamin B12-responsive methylmalonicaciduria
An inherited metabolic (biochemical) disease that, unless effectively treated, causes young children to become mentally retarded. The defect in some (but not all) of these children has to do with an inability to use the vitamin B12 they…
Read the definitionRandom terms
Show more- Abiotic 1. Not associated with living organisms.2. Anything in the environment incapable of life, such as the soil or…
- Pisa syndrome A condition in which there is sustained involuntary flexion of the body and head to one side and slight…
- Virus, human papilloma JC virus.
- Thanatology The study of death and dying, including the medical, psychological, and sociologic aspects of it. Each…
- Bad air Any air considered noxious. Today, air filled with tobacco smoke might be considered 'bad air.' So might air…
- Shock, toxic See Syndrome, toxic shock.
- Thrombosis The formation or presence of a blood clot in a blood vessel. The vessel may be any vein or artery as, for…
- Reflex A reaction that is involuntary. The corneal reflex is the blink that occurs with irritation of the eye. The…
- Pituitary dwarfism Dwarfism caused by a lack of growth hormone, usually due to malfunction of the pituitary gland. Children with…
- Directives, advance Known also as advance medical directives, these are documents that pertain to treatment preferences and the…
- VES (Voluntary Euthanasia Society) The first society of its kind in the world -- its founders included doctors, lawyers and churchmen -- the VES…
- Yellow jack 1) The flag displayed from lazarettos, naval hospitals, and vessels in quarantine. 2) Synonym for yellow…