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).
US Department of Agriculture
A department of the executive branch of the US government founded in 1862 by President Abraham Lincoln -- he called it the 'people's Department' -- that is devoted to agriculture in its broadest sense. The mission of the US Department of…
Read the definitionRandom terms
Show more- Herbalism The practice of making or prescribing herbal remedies for medical conditions. Practitioners of herbalism may…
- Hypnagogic Concerning the drowsiness one commonly feels before sleep, the transitional state preceding sleep, and also…
- Stenosis, aortic Narrowing (stenosis) of the heart valve between the left ventricle of the heart and the aorta. This narrowing…
- Injury, cold Cold injuries include chilblains, 'trench foot,' and frostbite. Cold injuries occur with and without freezing…
- Lambert-Eaton myasthenic syndrome An autoimmune disease characterized by weakness and fatigue of the proximal muscles (those near the trunk)…
- Symptomatic treatment Therapy that eases the symptoms without addressing the basic cause of the disease. For example, symptomatic…
- Electrocochleography A test that measures the electrical potentials generated in the inner ear in response to stimulation by…
- Protein kinase A An enzyme system that is activated by cyclic adenosine monophosphate (cAMP) and that catalyzes the activity…
- Adductor spasmodic dysphonia A disorder in which sudden muscle spasms cause the vocal folds (or vocal cords) to slam together. See…
- Cardiovascular The circulatory system comprising the heart and blood vessels which carries nutrients and oxygen to the…
- Malaise A vague feeling of discomfort, one that cannot be pinned down but is often sensed as 'just not right.'…
- Hygiene theory See: Hygiene hypothesis