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).
Cancer, stomach
Cancer of the stomach, the main organ that holds food for digestion. Worldwide, stomach cancer is the second most frequent cancer and the second leading cause of death from cancer. It can develop in any part of the stomach and spread to…
Read the definitionRandom terms
Show more- Reflux surgery (fundoplication) A surgical technique that strengthens the barrier to acid reflux when the lower esophageal sphincter does not…
- Red blood cell The blood cell that carries oxygen. Red cells contain hemoglobin and it is the hemoglobin which permits them…
- Acanthosis nigricans A skin condition characterized by dark thickened velvety patches, especially in the folds of skin in the…
- Veterinary medicine The medical science concerned with the diagnosis, treatment and prevention of diseases in animals. Aside from…
- Currarino syndrome Failure of formation of all or part of the sacrum (the lowest section of the spine). Currarino syndrome is a…
- Biofilm An aggregate of microbes with a distinct architecture. A biofilm is like a tiny city in which microbial…
- Syndrome, congenital rubella The constellation of abnormalities caused by infection with the rubella (German measles) virus before birth…
- Endothelium A layer of flat cells lining the closed internal spaces of the body such as the inside of blood vessels and…
- Intrauterine growth restriction The growth of the fetus is abnormally slow. When born, the baby appears too small, considering its' dates…
- Catheter A thin, flexible tube. For example, a catheter placed in a vein provides a pathway for giving drugs…
- Hormone, antidiuretic (ADH) A relatively small (peptide) molecule that is released by the pituitary gland at the base of the brain after…
- Reinstein syndrome A heritable syndrome characterized by eye disease (specifically, macular degeneration and inverse retinitis…