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).
Haploinsufficiency
A situation in which the total level of a gene product (a particular protein) produced by the cell is about half of the normal level and that is not sufficient to permit the cell to function normally. Another way to define…
Read the definitionRandom terms
Show more- HBIG Hepatitis B immune globulin, which contains antibodies to hepatitis B virus and offers prompt but short lived…
- Marfan syndrome Marfan syndrome: An inherited disorder of connective tissue characterized by abnormalities of the eyes…
- Organ failure The failure of an essential system in the body. Multiple organ failure is the failure of two or more systems…
- Carcinoma, pancreatic See: Pancreatic cancer
- Canine genome See: Dog genome
- History, developmental An account of how and when a person met developmental milestones, such as walking and talking. For adults…
- Q in population genetics The frequency of the less common of two different alternative (allelic) versions of a gene. (The frequency of…
- Physician-assisted suicide Suicide: The voluntary termination of one's own life by administration of a lethal substance with the direct…
- NBCCS Nevoid basal cell carcinoma syndrome, also known as the Gorlin syndrome
- PHS The Public Health Service, the agency responsible for the public health of the American people. The Public…
- Aicardi syndrome A genetic disorder characterized by the partial or complete agenesis of the corpus callosum (the structure…
- Dengue Also known as Dengue fever, an acute mosquito-borne viral illness of sudden onset that usually follows a…