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).
Great Plague
The 'Great Plague' that swept London in 1665 was probably not really the plague but rather typhus. The plague was a highly contagious, infectious, virulent, devastating disease due to a bacteria called Yersinia pestis which mainly infects…
Read the definitionRandom terms
Show more- Familial amyotrophic lateral sclerosis Amyotrophic lateral sclerosis (ALS) in which there a family history of the disease. Familial ALS constitutes…
- AN The military designation for hydrogen cyanide. See: Cyanide
- Tyrosinemia type II A metabolic genetic disease due to deficiency of the enzyme tyrosine transaminase. The disease is…
- Zinc acetate A form of zinc that has been used as an emetic
- Aortic valve, bicuspid Whereas the normal aortic valve in the heart has three flaps (cusps) that open and close, a bicuspid valve…
- Lentigines When there is one lentigo, there are usually more lentigines
- Autotransplant The process of transplanting tissue from one part of the body to another in the same individual. The…
- Adenopathy Large or 'swollen' lymph nodes. Synonymous with lymphadenopathy
- Vaccine, meningococcal A vaccine to prevent meningococcal meningitis, an inflammation of the membranes that cover the brain and…
- Weighing, underwater See: Underwater weighing
- Sequence, Klippel-Feil See: Klippel-Feil sequence
- Lyonization The inactivation of an X chromosome. One of the two X chromosomes in every cell in a female is randomly…