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.
- 100% free
- No registration
- No intrusive ads
- Privacy by design
- Mobile friendly
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).
Deficiency, niacin
See: Pellagra
Read the definitionRandom terms
Show more- Elastase 1 Pancreatic elastase, a member of the pancreatic family of serine proteases. Although termed elastase, this…
- Cognitive therapy A relatively short-term form of psychotherapy based on the concept that the way we think about things affects…
- Dentin Dentin is the hard tissue of the tooth surrounding the central core of nerves and blood vessels (pulp).
- Reflux laryngitis Reflux laryngitis: Inflammation of the voice box (the larynx) caused by stomach acid backing up into the…
- Monozygous twins Twin: Identical twins that originate from a single fertilized egg (a zygote)
- Nosocomial Originating or taking place in a hospital, acquired in a hospital, especially in reference to an infection…
- Overload, iron Iron overload can damage the heart, liver, gonads and other organs. Iron overload is a particular risk for: >…
- Chromosome inversion, paracentric The chart of the linear array of genes on a chromosome. A chromosome map can also refer to the visual…
- Autolysis The enzymatic digestion of cells by enzymes present within them. The cells most susceptible to autolysis tend…
- Ig Abbreviation for immunoglobulin, a protein produced by plasma cells and lymphocytes. Immunoglobulins are an…
- Vaccination, German measles See Immunization, MMR.
- Asbestos Asbestos: A natural material made up of tiny fibers which can lodge in the lungs and lead to cancer or…