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).
Delusion
A false personal belief that is not subject to reason or contradictory evidence and is not explained by a person's usual cultural and religious concepts (so that, for example, it is not an article of faith). A delusion may be firmly…
Read the definitionRandom terms
Show more- HUS Hemolytic uremic syndrome
- Hemidiaphragm Half of the diaphragm, the muscle that separates the chest cavity from the abdomen and that serves as the…
- Incest Sexual activity between individuals so closely related that marriage is prohibited. Incest involving a child…
- Necrotic Synonymous with dead. Necrotic tissue is dead tissue.
- PKD Short for phenylketonuria. See: Phenylketonuria.
- T-4 cell A type of T cell that has CD4 markers on its surface and participates in the immune response by recognizing…
- Fever, spotted Fever, spotted: Also known as Rocky Mountain spotted fever. An acute febrile (feverish) disease initially…
- Transmissible spongiform encephalopathy One of a number of progressive neurodegenerative disorders in animals and humans caused by similar…
- Thyroid hormone A chemical substance made by the thyroid gland for export into the bloodstream. The thyroid gland needs…
- Cholesterol, LDL Cholesterol, LDL: Lipoproteins which are combinations of lipids (fats) and proteins are the form in which…
- Therapeutic Relating to therapeutics, that part of medicine concerned specifically with the treatment of disease. The…
- Mitral valve prolapse Mitral valve prolapse: Drooping down or abnormal bulging of the mitral valve's cusps backward into the atrium…