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).
Beta-secretase
An enzyme that appears to be directly involved in the early development of Alzheimer's disease. Beta-secretase is a protease (an enzyme that catalyses the splitting of interior peptide bonds in a protein). Beta-secretase acts by trimming…
Read the definitionRandom terms
Show more- Nummular eczema Coin-shaped patches of irritated skin-most common on the arms, back, buttocks, and lower legs that may be…
- Syndrome, Pisa A condition in which there is sustained involuntary flexion of the body and head to one side and slight…
- Bones of the head There are 29 bones in the human head. They consist of 8 cranial bones, 14 facial bones, the hyoid bone, and 6…
- Ataxia Wobbliness. Incoordination and unsteadiness due to the brain's failure to regulate the body's posture and…
- Chronic obstructive lung disease (COLD) Any disorder that persistently obstructs bronchial airflow. COLD mainly involves two related diseases --…
- Hives Hives: A raised, itchy area of skin that is usually a sign of an allergic reaction. It can be rounded or…
- Rift Valley fever A viral disease that is acute, causes fever in domestic animals (such as cattle, buffalo, sheep, goats, and…
- Triglyceride test Triglyceride test: A simple blood test to measure the level of triglycerides in the blood. Triglyceride…
- MASS syndrome A heritable disorder of connective tissue characterized by involvement of the mitral valve, aorta, skeleton…
- Autoimmune hepatitis A disease in which the body's immune system attacks liver cells, causing inflammation of the liver…
- Floater A blurry spot that seems to drift in front of the eyes but does not block vision. The blur is the result of…
- Radiation fibrosis Scarring of the lungs from radiation. Radiation fibrosis is a sequel of radiation pneumonitis (inflammation…