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).
Tamponade, cardiac
A life-threatening situation in which there is such a large amount of fluid (usually blood) inside the pericardial sac around the heart that it interferes with the performance of the heart. The end result, if untreated, is low blood…
Read the definitionRandom terms
Show more- Hyperlexia The presence of advanced ability to read compared to the ability to understand spoken language. Children with…
- Osteoblast A cell that makes bone. It does so by producing a matrix that then becomes mineralized. Bone mass is…
- Menopause Menopause: The time in a woman's life when menstrual periods permanently stop; it is also called the 'change…
- Vesicles In dermatology, vesicles are small blisters, most often on the skin. Vesicles also can crop up on the mucous…
- Lymphocytic colitis Lymphocytic colitis> A type of inflammatory disease of the large intestine (colon). The name derives from the…
- Immunization, meningococcal A vaccine to prevent meningococcal meningitis, an inflammation of the membranes that cover the brain and…
- Focal dystonia due to torticollis Spasm of the muscles in the neck that control the position of the head, causing the head to twist and turn to…
- Colon The part of the large intestine that runs from the cecum to the rectum as a long hollow tube that serves to…
- Acute-phase reactant See: Acute-phase protein
- Stasis ulcer A stasis ulcer is an ulcer (a crater) that develops in an area in which the circulation is sluggish and the…
- EEG Electroencephalogram, e technique for studying the electrical current within the brain. Electrodes are…
- Glucose Glucose: The simple sugar (monosaccharide) that serves as the chief source of energy in the body. Glucose is…