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).
Appendectomy
Appendectomy: Removal by surgery of the appendix, the small worm-like appendage of the colon (the large bowel). An appendectomy is performed because of probable appendicitis, inflammation of the wall of the appendix generally associated…
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Show more- Hormone, androgenic Any hormone that promotes the development and maintenance of the male sex characteristics. Testosterone is an…
- Quiescence Inactivity, quietness. In cells, quiescence is the state of not dividing. In neurons (nerve cells)…
- Aortic dissection Aortic dissection: A progressive tear in the aorta. The inner lining (intima) of the aorta tears and blood…
- Syndrome, Duane See: Duane syndrome
- Common migraine Migraine without aura. The most frequent type, accounting for about 80-85% of migraine. See: Migraine
- Xeno- (prefix) Foreign or other. As in: > >Xenoantigen -- An antigen that is found in more than one species. >Xenograft -- A…
- Natural killer cell A cell that can react against and destroy another cell without prior sensitization to it. Natural killer (NK)…
- Pancreatic juices Inflammation of the pancreas. Of the many diverse causes of pancreatitis, the most common are alcohol and…
- Esophagram A series of x-rays of the esophagus. The x-ray pictures are taken after the patient drinks a solution that…
- Lipid Another word for 'fat.' (Please see the various meanings of Fat.) A lipid is more formally defined as a…
- Brachial palsy See: Brachial plexus palsy
- Necrosis, coagulation Tissue death due to clots in the bloodstream, which block the flow of blood to the affected area