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).
Enzymes
Proteins that act as a catalysts in mediating and speeding a specific chemical reaction. In 1902 Archibald Garrod first attributed a disease to an enzyme defect: an inborn error of metabolism. Today, newborns are routinely screened for…
Read the definitionRandom terms
Show more- Sclerodactyly Localized thickening and tightness of the skin of the fingers or toes. Sclerodactyly is commonly associated…
- Oral Having to do with the mouth; given by mouth, as in an oral solution
- Joint, TM The joint that hinges the lower jaw (mandible) to the skull
- Nerve, accessory See: Accessory nerve
- Primary amebic meningoencephalitis A rare, but fatal infection of the central nervous system caused by Naegleria fowleri, an ameba that inhabits…
- Toxicology The study of the nature, effects and detection of poisons and the treatment of poisoning
- National Academies Collectively, the four National Academies of the United States -- the National Academy of Sciences, the…
- Tetrafluoroethylene A substance that is a possible carcinogen (cancer-causing agent) used in the production of polymers such as…
- Reticulocyte A young red blood cell that usually remains in the bone marrow with only a few venturing out into the…
- Syphilis, congenital The third stage of syphilis, in which the syphilis spirochetes infect the brain and other organs of the body…
- IGT The Indian Health Service, a part of the US Public Health Service within the US Department of Health and…
- Electrocochleography A test that measures the electrical potentials generated in the inner ear in response to stimulation by…