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).
West Nile virus
West Nile virus: The mosquito-borne virus that causes West Nile fever. One of the flaviviruses, a family of viruses also responsible for dengue, yellow fever, and tick-borne encephalitis virus. Like the other flaviviruses, the West Nile…
Read the definitionRandom terms
Show more- Sociopath A term once used for someone with what is now called antisocial personality disorder
- Reproductive cells The eggs and sperm are the reproductive cells. Each mature reproductive cell is haploid in that it has a…
- Necrosis, coagulation Tissue death due to clots in the bloodstream, which block the flow of blood to the affected area
- Thanatology The study of death and dying, including the medical, psychological, and sociologic aspects of it. Each…
- AOA Abbreviation for Alpha Omega Alpha, the medical honor society, the medical school equivalent of Phi Beta…
- Human herpesvirus 1 (HHV-1) A herpes virus that causes cold sores and fever blisters in and around the mouth. Here is a depiction of a…
- Q.d. (on prescription) Seen on a prescription, q.d. (or qd) means one a day (from the Latin quaque die). The abbreviation is…
- ARB Angiotensin II receptor blocker
- UBT Urea breath test
- Chickenpox Immunization designed to prevent or lessen the severity of the common disease known as chickenpox. The…
- Corpus callosotomy The corpus callosum is a band of nerve fibers connecting the two halves (hemispheres) of the brain. A corpus…
- Y map The array of genes on the Y chromosome. Once thought to be a genetic wasteland, the Y now is known to contain…