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).
Apheresis
The process of removing a specific component from blood and returning the remaining components to the donor, in order to collect more of one particular part of the blood than could be separated from a unit of whole blood. Also called…
Read the definitionRandom terms
Show more- Law, Hardy-Weinberg Basic concept in population genetics discovered independently in 1908 by the great English mathematician…
- Guanine One of the four bases in DNA that make up the letters ATGC. Guanine is the 'G'. The others are adenine…
- Rhabdomyolysis A condition in which skeletal muscle cells break down, releasing myoglobin (the oxygen-carrying pigment in…
- ALT (alanine aminotransferase) An enzyme normally present in liver and heart cells that is released into the bloodstream when the liver or…
- Flu, bird See: Avian influenza
- Private mutation A rare mutation found usually only in a single family or a small population. It is like a privately printed…
- Crohn ileocolitis Crohn disease involving the ileum (the lowest portion of the small intestine) and the colon (the large…
- Vein, femoral See: Femoral vein
- Incontinence, urge A sudden involuntary contraction of the muscular wall of the bladder causing urinary urgency, an immediate…
- Reaction, allergic A reaction that occurs when the immune system attacks a usually harmless substance (an allergen) that gains…
- Osteosarcoma A cancer of the bone that occurs predominantly in adolescents and young adults. It accounts for 5 percent of…
- Atlantoaxial Pertaining to the first and second cervical vertebrae which meet at a joint called the atlantoaxial joint…