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).
Allergy
Allergy: A misguided reaction to foreign substances by the immune system, the body system of defense against foreign invaders, particularly pathogens (the agents of infection). The allergic reaction is misguided in that these foreign…
Read the definitionRandom terms
Show more- T cell, peripheral A T cell found in the peripheral blood rather than in the lymphatic system.
- Phenotype, Klippel-Feil See: Klippel-Feil sequence
- Intraperitoneal chemotherapy Chemotherapy: Treatment in which anticancer drugs are put directly into the abdomen through a thin tube
- Naproxen Naproxen: A non-steroidal anti-inflammatory drug (NSAID) used for the management of mild to moderate pain…
- Vitamin P An old name for substances now known as bioflavinoids. They are no longer considered to be vitamins by the…
- Urethritis Inflammation of the urethra. (The urethra is the transport tube leading from the bladder to discharge urine…
- Phobia An unreasonable sort of fear that can cause avoidance and panic. Phobias are a relatively common type of…
- Chemotherapy-related cognitive dysfunction See: Chemobrain
- Anxiety disorder, social Excessive fear of embarrassment in social situations that is extremely intrusive and can have debilitating…
- Disease, Kawasaki A syndrome of unknown origin, mainly affecting young children, causing fever, reddening of the eyes…
- Lacrimal gland A small almond-shaped structure that produces tears. The lacrimal gland is located just above the outer…
- Specificity 1. The quality of being specific as, for example, she showed the use of specificity in her diagnosis. 2. The…