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).
Blood blister
A blister full of blood due to a pinch, bruise or repeated friction. A blister is medically termed a vesicle. One that is more than 5 mm in diameter with thin walls and is full of watery fluid is called a bulla or a bleb. The word…
Read the definitionRandom terms
Show more- Oxygen tent A tent-like device used to deliver high levels of oxygen to a patient in a bed. The tent typically covers the…
- Vaccine, influenza The influenza (flu) vaccine is recommended for persons at high risk for serious complications from influenza…
- Hypoplasia, syndromatic hepatic ductular Also called Alagille syndrome or arteriohepatic dysplasia, this is a genetic disorder characterized by…
- Infection, opportunistic An infection that occurs because of a weakened immune system. Opportunistic infections are a particular…
- Octogenarian Someone in his or her eighties, that is, between 80 and 89 years of age. See also: Age by decade
- Stiff baby syndrome A genetic disorder also known as hyperexplexia in which babies have an exaggerated startle reflex (reaction)…
- Nasal-spray flu vaccine See: Nasal flu vaccine
- Test, auditory brainstem response A widely used test of the newborn baby as to their neurologic status and developmental progress. The…
- Crepitus A clinical sign in medicine characterized by a peculiar crackling, crinkly, or grating feeling or sound under…
- Giant hypertrophy of gastric mucosa See: Giant hypertrophic gastritis
- Hyper- A genetic disorder characterized by recurring attacks of chills and fever that usually start before the first…
- Niemann-Pick disease A biochemical disorder affecting a lipid (fat) called sphingomyelin, resulting usually in progressive…