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).
Test, allergy scratch
Allergy scratch: Test done on the skin to identify the allergy substance (the allergen) that is the trigger for an allergic reaction. A small amount of the suspected allergy-provoking substance is placed on the skin. The skin is then…
Read the definitionRandom terms
Show more- Gram (measure) A unit of measurement of weight and mass in the metric system. In weight, a gram is equal to a thousandth of…
- Kala-azar A chronic and potentially fatal parasitic disease of the viscera (the internal organs, particularly the…
- Fear of water An abnormal and persistent fear of water. Sufferers of aquaphobia experience anxiety even though they realize…
- Palpebral gland See: Meibomian gland
- ADH (antidiuretic hormone) A peptide molecule that is released by the pituitary gland at the base of the brain after being made nearby…
- Canine heartworm Dirofilaria immitis. See: Heartworm
- Dyspnoea Difficult or labored breathing; shortness of breath. Dyspnoea is a sign of serious disease of the airway…
- Sleeplessness Insomnia. See also Fatal familial insomnia
- Variant Creutzfeldt-Jakob disease Variant Creutzfeldt-Jakob disease: Abbreviated vCJD. A human disease thought due to the same infectious agent…
- Herbicide chemical 2,4-DCP A poisonous chemical used to produce a herbicide. 2,4-DCP (short for 2,4-dichlorophenol) is employed in the…
- Celiac sprue See: Celiac disease
- Extracorporeal (ECMO) A life support system that circulates the blood through an oxygenating system. ECMO is like a…