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).
Range, normal
By convention, the normal range for whatever (a particular test, condition, symptom, behavior, etc.) is set to cover ninety-five percent (95%) of all values from the general population. Five percent (5%) of results consequently fall…
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Show more- Dropsy An old term for the swelling of soft tissues due to the accumulation of excess water. In years gone by, a…
- Myelin The fatty substance that covers and protects nerves. Myelin is a layered tissue that sheathes the axons…
- Tissue, lymphoid A part of the body's immune system that helps protect it from bacteria and other foreign entities. Lymphoid…
- Mutilating keratoderma See: Vohwinkel syndrome
- Disease, Bernard-Soulier Nt platelet syndrome): This disease is a primary problem of platelets in which the platelets lack the ability…
- Toxin, anthrax The toxic substance secreted by the bacterium Bacillus anthracis, the causative agent of the disease anthrax…
- NF2 (neurofibromatosis type 2) Neurofibromatosis type 2
- Syndrome, abdominal muscle deficiency See: Abdominal muscle deficiency syndrome
- Histidine An amino acid, one of the 20 building blocks of protein. An essential amino acid, histidine is present in…
- Alpha error The statistical error (said to be 'of the first kind' or type I) made in testing an hypothesis when it is…
- Insufficiency, respiratory See: Respiratory insufficiency
- Membrane, vaginal A thin membrane which completely or partially occludes the vaginal opening. This fold of mucous membrane is…