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).
Immunodeficiency
Inability to mount a normal immune response. Immunodeficiency can be due to a genetic disease or acquired as in AIDS due to HIV
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Show more- Genu The Latin word for the knee. When the knee is referred to in medicine, it is just called the knee. However…
- Dia- Prefix taken straight from the Greek meaning 'through, throughout, completely' as in diachronic, diagnosis…
- Tuberculosis vaccination A vaccination for tuberculosis (TB). The vaccine, known as BCG (bacille Calmette Guerin), is used in most…
- Pseudorubella Synonymous with Roseola infantum, a viral disease of infants sudden onset of high fever which lasts several…
- Sigmoid volvulus See: Volvulus
- Glucose-6-phosphate dehydrogenase (G6PD) Deficiency of G6PD is the commonest disease-causing enzyme defect in humans affecting an estimated 400…
- Deficiency, sphingomyelinase Also called Niemann-Pick disease, this is a disorder of the metabolism of a lipid (fat) called sphingomyelin…
- EECP See: Enhanced external counterpulsation
- Pathogenicity island The genetic element, the 'island of evil', within the genome of an organism that is responsible for its…
- Hypocarbia Less than the normal level of carbon dioxide in the blood. The opposite of hypercarbia
- Congenital neutropenia, severe (SCN) Neutropenia, severe (SCN): Children born with this condition lack neutrophils (a type of white blood cell…
- Pyelo Short for pyelonephritis, which is bacterial infection of the kidney. Pyelonephritis can be acute (sudden) or…