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).
Epidemiology, clinical
Epidemiology focused specifically upon patients. Epidemiology is the study of populations in order to determine the frequency and distribution of disease and measure risks.
Read the definitionRandom terms
Show more- Tinea incognito Tinea corporis, a common fungal infection of the skin, better known as ringworm, whose appearance has been…
- Obstruction Blockage of a passageway. See, for example: Airway obstruction; Intestinal obstruction
- Bed bugs Bed bugs: Bed bugs are small, oval, wingless insects of the family Cimicidae, which have a flat…
- Cardiac index A cardiodynamic measure based on the cardiac output, which is the amount of blood the left ventricle ejects…
- Meiotic nondisjunction Failure of two members of a chromosome pair to separate (disjoin) during meiosis so that both go to one…
- Sentinel lymph node biopsy Sentinel lymph node biopsy: Examination of the first lymph node ('gland') that receives lymphatic drainage…
- Thallium scan A method of examining the heart to obtain information about the blood supply to the heart muscle. In the…
- Central venous line A catheter (tube) that is passed through a vein to end up in the thoracic (chest) portion of the vena cava…
- Mantoux test A skin test for tuberculosis, named for the French physician Charles Mantoux (1877-1947). See: Tuberculin
- Reaction, allergic A reaction that occurs when the immune system attacks a usually harmless substance (an allergen) that gains…
- Respiratory Having to do with respiration, the exchange of oxygen and carbon dioxide. From the Latin re- (again) +…
- Pregnancy, hyperemesis of Excessive vomiting during pregnancy which, by definition, leads to the loss of 5% or more of the body weight…