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).
Point mutation
A single nucleotide base change in the DNA. A point mutation may consist of the loss of a nucleotide, the insertion of an additional nucleotide, or the substitution of one nucleotide for another. The first point mutation discovered in…
Read the definitionRandom terms
Show more- Fat scales See: Bioelectric impedance analysis
- Coarctation A narrowing, a stricture, a constriction. Although the best known coarctation is of the aorta, any artery can…
- Paraneoplastic syndrome The collective signs and symptoms caused by a substance emanating from a tumor or in reaction to a tumor…
- Schmorl's node An upward and downward protrusion (pushing into) of a spinal disk's soft tissue into the bony tissue of the…
- Vitamin B -- pantothenic acid This is one of the less well known B vitamins, perhaps because it is widely distributed in nature…
- Quarantine The period of isolation decreed to control the spread of infectious disease. Before the era of antibiotics…
- Familial polyposis An inherited condition in which several hundred polyps develop in the colon and rectum.
- Xanthinuria An inherited metabolic disorder in which there is deficiency of an enzyme needed to process xanthine, a…
- Histiocytic necrotizing lymphadenitis A disorder, also called Kikuchi disease, that typically causes 'swollen glands' in the neck (cervical…
- Autoimmune process A process in which the body's immune system attacks and destroys body tissue that it mistakes for foreign…
- Plano In practical optics, a surface that has been worked flat
- Syndrome, autoimmune polyglandular (APS) A genetic autoimmune disease with an extraordinary array of clinical features but characterized most often by…