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).
Disease, exaggerated startle
A genetic disorder also known as hyperexplexia in which babies have an exaggerated startle reflex (reaction). This disorder was not recognized until 1962 when it was described by Drs. Kok and Bruyn as a disease with the onset at birth of…
Read the definitionRandom terms
Show more- Salient Standing out. Projecting. When the true nature of a disease is poorly understood, it is often classified by…
- Acid reflux A common condition and an abnormal one in which acid in the stomach rises up into the esophagus. This occurs…
- Eczema Eczema: A particular type of inflammatory reaction of the skin in which there are typically vesicles (tiny…
- Sleep Sleep: The body's rest cycle. Sleep is triggered by a complex group of hormones that are active in the main…
- Rodenticide A chemical or other agent used to destroy rats or other rodent pests or prevent them from damaging food…
- Polyendocrinopathy syndrome, autoimmune A genetic autoimmune disease with an extraordinary array of clinical features but characterized most often by…
- Water fluoridation The addition of fluoride to water supplies that are low in fluoride in order to prevent dental caries. For…
- Particle, alpha A tiny mass of material composed of two protons and two neutrons. Alpha particles do not travel very far from…
- Fear of cats An abnormal and persistent fear of cats which produces an undue anxiety reaction even though sufferers…
- Oryzomys palustris See: Rice rat
- Presbyacousia See: Presbycusis
- Urography A method for examining the structure and functionality of urinary system. A special dye is injected, and…