MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Gray
A unit of absorbed radiation equal to the dose of one joule of energy absorbed per kilogram of matter, or 100 rad. The unit is named for the British physician L. Harold Gray (1905-1965), an authority on the use of radiation in the…
Read the definitionRandom terms
Show more- Disease, Anderson-Fabry See: Fabry disease
- Barbara McClintock See: McClintock, Barbara
- Runx-1 A protein that is a transcription factor controlling when genes are switched on or off. Runx-1 acts by…
- ATM Symbol for the ataxia telangiectasia mutated (ATM) gene. The protein made by the ATM gene functions to…
- Abdominal hysterectomy Surgical removal of the uterus (a hysterectomy) done through an incision made in the abdominal wall. As…
- Aspergillosis Infection with the fungus Aspergillus, seen especially in people with a deficient immune system. The clinical…
- Capillary One of the tiny blood vessels that connect the arterioles (the smallest divisions of the arteries) and the…
- Coronavirus An agent that inhibits the action of the enzyme cox-1 (cyclooxygenase-1). The common anti-inflammatory drugs…
- Shock, cardiogenic Shock caused by heart failure. The heart fails to pump blood effectively. For example, a heart attack (a…
- Depression, dysthymia A type of depression involving long-term, chronic symptoms that are not disabling, but keep a person from…
- Boerhaave's syndrome Spontaneous tearing and rupture of the esophagus. Typically, Boerhaave's syndrome requires an operation for…
- Red jungle fowl genome The genome of Gallus gallus, the ancestor of domestic chickens. See: Chicken genome