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).
Cascade
A sequence of successive activation reactions involving enzymes (enzyme cascade) or hormones (hormone cascade) characterized by a series of amplifications of an initial stimulus. In blood coagulation, for example, each enzyme activates the…
Read the definitionRandom terms
Show more- Dumdum fever Also called kala-azar, a chronic, potentially fatal parasitic disease of the viscera (the internal organs)…
- Disease, Binswanger A form of dementia with blood vessel abnormalities in the deep white-matter of the brain causing loss of…
- Shot, flu The flu (influenza) vaccine is recommended annually (each year) for persons at high risk for serious…
- Error, alpha The statistical error (said to be 'of the first kind' or type I) made in testing an hypothesis when it is…
- Ovary, polycystic See: Polycystic ovary syndrome
- Beriberi, infantile See: Infantile beriberi
- Health, Aleut See: Artic health
- Joint, acetabular The hip joint by another name. The acetabulum is the cup-shaped socket of the hip joint. It is a key feature…
- Arthrocentesis Joint aspiration, a procedure whereby a sterile needle and syringe are used to drain fluid from a joint. This…
- Cancer of the appendix See: Appendix cancer
- Frontal lobe The part of each hemisphere of the brain located behind the forehead that serves to regulate and mediate the…
- Encephalopathic syndrome A dangerous condition with symptoms similar to those of neuroleptic malignant syndrome (NMS), of which it may…