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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Apraxia
The inability to execute a voluntary motor movement despite being able to demonstrate normal muscle function. Apraxia is not related to a lack of understanding or to any kind of physical paralysis but is caused by a problem in the cortex…
Read the definitionRandom terms
Show more- Test, Fisher's exact A statistical test of independence much used in medical research. It tests the independence of rows and…
- Vessel, efferent A vessel carrying blood away from the heart. An artery or arteriole
- Cholesterol guidelines The guidelines on cholesterol for adults. A 2004 update to the National Cholesterol Education Program's…
- Methicillin A semisynthetic penicillin-related antibiotic, also known as Staphcillin, that once was effective against…
- Certified nurse-midwife A person with an AS, BS, or Master's degree in nursing who has also completed specialized training in…
- Recurrent laryngeal nerve One of the best known branches of the vagus nerve, a very long nerve that originates in the brainstem. After…
- Heart muscle A type of muscle with unique features only found in the heart. The heart muscle, or cardiac muscle, is…
- Pressure wound See: Pressure sore
- Library, arrayed In genetics, arrayed libraries of DNA clones are used for many purposes, including screening for a specific…
- Autoimmune disease An illness that occurs when the body tissues are attacked by its own immune system. The immune system is a…
- Catalyst A substance that speeds up a chemical reaction but is not consumed or altered in the process. Catalysts are…
- Lycopene Lyme disease is a bacterial illness caused by a bacterium called a "spirochete." Lyme disease is spread by…