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).
Dynein
A family of microtubule motor proteins that derive energy from ATP (adenosine triphosphatase) activity. The dyneins also form arms on the outer tubules of cilia and flagella. The dynein motor, a cellular complex believed to be composed of…
Read the definitionRandom terms
Show more- Aortal Pertaining to the aorta, the largest artery in the body. Aortal is not often encountered (except in The New…
- Insulin Insulin: A natural hormone made by the pancreas that controls the level of the sugar glucose in the blood…
- Human growth See: Normal growth
- Occlusion The act of occluding. See: Occlude
- Necrotizing gingivitis This is trench mouth, a progressive painful infection with ulceration, swelling and sloughing off of dead…
- Lysosome An organelle (a little organ) in a cell containing enzymes that degrade macromolecules (large molecules) and…
- Medicare >'senior citizens' -- people 65 years of age or older, >certain younger people with specific disabilities…
- Rheumatologist A specialist in the non-surgical treatment of rheumatic illnesses, especially arthritis. Rheumatologists have…
- Medicaid State programs of public assistance to persons regardless of age whose income and resources are insufficient…
- Snoring Snoring: A rough rattling noise made on inspiration during sleep by vibration of the soft palate (the back of…
- Osteosynthesis A surgical procedure that stabilizes and joins the ends of fractured (broken) bones by mechanical devices…
- Paraskevidekatriaphobia Fear of Friday the 13th. The word 'paraskevidekatriaphobia' was devised by Dr. Donald Dossey who told his…