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).
PKU, maternal
A "sugar pill" or any dummy medication or treatment. For example, in a controlled clinical trial, one group may be given a real medication while another group is given a placebo that looks just like it in order to learn if the differences…
Read the definitionRandom terms
Show more- Analgesia The inability to feel pain while still conscious. From the Greek an-, without + algesis, sense of pain.
- Time, prothrombin A clotting test, the prothrombin time is done to test the integrity of part of the clotting scheme. The…
- Sacrum The large heavy bone at the base of the spine, which is made up of fused sacral vertebrae. The sacrum is…
- GFAP Glial fibrillary acidic protein. The degenerative brain condition called Alexander disease is caused by…
- Exstrophy Eversion of a hollow organ at birth. An exstrophic bladder is one that is turned inside out like a rubber…
- HCFA The Health Care Finance Administration, the part of the U.S. Department of Health and Human Services (HHS)…
- Pavlovian conditioning The Russian physiologist Ivan Petrovich Pavlov (1848-1936) conditioned dogs to respond in what proved to be a…
- Phenomenon, Raynaud's A condition resulting in discoloration of fingers and/or toes when a person is exposed to changes in…
- Conjoined twin Identical (monozygotic) twins that did not separate fully from one another but are still partially united…
- APO-1 See: FAS gene
- Uterine fibroids The fornix of the uterus (known in medical Latin as the "fornix uteri") refers to the anterior (front) and…
- Thalidomide baby An infant affected by prenatal exposure to the drug thalidomide. This medication was prescribed to pregnant…