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).
Lectin
A complex molecule that contains both protein and sugar. Lectins are made by both animals and plants and are able to bind to the outside of a cell and cause biochemical changes in it
Read the definitionRandom terms
Show more- Buccal mucosa The inner lining of the cheeks and lips.
- Exercise-induced bronchospasm Also called exercise- induced asthma, this is asthma that is triggered by vigorous physical activity…
- Central nervous system, spongy degeneration of the Also called Canavan disease, this is a severe progressive fatal inherited (genetic) disorder of the central…
- Hepatitis Inflammation of the liver caused by the hepatitis A virus (HAV). HAV is usually transmitted from person to…
- Hygieia The science of preventive medicine and the preservation of health. From the name of Hygeia, the daughter of…
- Immunization, chickenpox In the United States, it is recommended that all children receive vaccination against: Hepatitis B…
- Antiphospholipid antibody syndrome Antiphospholipid antibody syndrome (APLS): An immune disorder characterized by the presence of abnormal…
- Peritonitis, chronic Longstanding inflammation of the peritoneum, the membrane lining the inner wall of the abdomen and pelvis…
- Nervous system, central (CNS) That part of the nervous system that consists of the brain and spinal cord. The central nervous system (CNS)…
- Zenker diverticulum The most common type of outpouching in the esophagus, due to increased pressure causing the mucous membrane…
- Soft palate The muscular part of the roof of the mouth. The soft palate is directly behind the hard palate. It lacks bone…
- Endothelial Relating to the endothelium, the layer of flat cells lining the closed spaces of the body such as the inside…