MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Immunization, meningococcal
A vaccine to prevent meningococcal meningitis, an inflammation of the membranes that cover the brain and spinal cord due to bacterial infection by an organism called Neisseria meningitidis. The symptoms of meningococcal meningitis include…
Read the definitionRandom terms
Show more- Dyslexia Dyslexia: A specific reading disability due to a defect in the brain's processing of graphic symbols…
- UA Abbreviation for urinalysis, a test that determines the content of the urine. Because urine removes toxins…
- Chiron In Greek mythology, the centaur who, wounded by Hercules, invented medicine in order to heal himself. Chiron…
- Syndrome, Timothy See: Timothy syndrome
- Aspiration pneumonia Pneumonia: Infection of the lungs due to aspiration (the sucking in of food particles or fluids into the…
- Transferrin A plasma protein that transports iron through the blood to the liver, spleen and bone marrow. The blood…
- Acid indigestion Excessive secretion of hydrochloric acid by the stomach cells. Medically known as hyperchlorhydria. Sometimes…
- Brain anthrax Anthrax infection of the central nervous system (the spinal cord and brain) and meninges (the membranes…
- Hygiene The science of preventive medicine and the preservation of health. From the name of Hygeia, the daughter of…
- Pathogenicity island The genetic element, the 'island of evil', within the genome of an organism that is responsible for its…
- Appendix cancer A malignancy of the appendix, accounting for about 1 in 200 of all gastrointestinal malignancies. Although…
- Hypoglycemic Relating to hypoglycemia, an abnormally low level of the sugar glucose in the blood, usually a complication…