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).
Catalysis
The process by which a substance speeds up a chemical reaction without being consumed or altered in the process. Substances that can accomplish this remarkable feat are termed catalysts and are of immense importance in chemistry and…
Read the definitionRandom terms
Show more- Syndrome, chromosome 4 short-arm deletion This syndrome, called the Wolf-Hirschhorn syndrome, is a chromosome disorder due to partial deletion of the…
- Salicylic acid A substance obtained from plants (white willow back and wintergreen leaves) and also synthesized which is…
- Bowen disease An early stage of skin cancer. Bowen's disease is medically the same as 'squamous cell carcinoma in situ.'…
- Pneumoconiosis The deposition of particulate matter such as asbestos and silicon in the lungs. See also: Black lung disease
- Tamponade, pericardial A life-threatening situation in which there is such a large amount of fluid (usually blood) inside the…
- Conserved sequence A base sequence in a DNA molecule (or an amino acid sequence in a protein) that has remained essentially…
- Hemoglobin, glycosylated Hemoglobin to which glucose is bound. Glycosylated hemoglobin is tested to monitor the long-term control of…
- Transplant, heart See: Heart transplant
- Pyloric stenosis Narrowing (stenosis) of the outlet of the stomach so that food cannot pass easily from it into the duodenum…
- Attenuated FAP Attenuated familial adenomatous polyposis
- FMRP As stated in the entry for FMR1, FMRP is an acronym composed of the first letters of Familial Mental…
- Mite, dust See: Dust mite