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- Emergency medical technician A person trained in the performance of the procedures required in emergency medical care. You are most likely…
- Flu, avian See: Avian influenza
- Contraceptive, diaphragm A barrier method of contraception that is available by prescription only and must be sized by a health…
- Z chromosome A sex chromosome in certain animals, such as chickens, turkeys, and moths. In humans, males are XY and…
- Gastric volvulus See: Volvulus
- Pathogen An agent of disease. A disease producer. The term pathogen most commonly is used to refer to infectious…
- Beriberi, infantile See: Infantile beriberi
- Virus, lymphadenopathy Another name for the human immunodeficiency virus (HIV), the cause of AIDS. Please see: Virus, human…
- Benign prostatic hyperplasia See: Benign prostatic hyperplasia.
- False rib One of the last 5 pairs of ribs. A rib is said to be 'false' if it does not attach to the sternum (the breast…
- Polio vaccine, live See: Polio vaccine, oral
- Tumeric A spice with anti-inflammatory effects. The active ingredient is curcumin, which has antioxidant and…