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).
Severe acute respiratory syndrome
Severe acute respiratory syndrome: A severe form of pneumonia. Abbreviated SARS. A term applied to outbreaks of a mysterious illness in Asia beginning February 1, 2003. The clinical criteria for the diagnosis of SARS are: > >One or more…
Read the definitionRandom terms
Show more- Giant cell tumor of bone A tumor of bone characterized by massive destruction of the end (epiphysis) of a long bone. The site most…
- Laryngeal stenosis Narrowing or constricting of the larynx, the voice box
- System, sympathetic nervous A part of nervous system that accelerates the heart rate, constricts blood vessels, and raises blood…
- Aorta, abdominal The abdominal aorta is the final section of the aorta, the largest artery in the body. It is a continuation…
- Ornithophobia An abnormal and persistent fear of birds. Sufferers from ornithophobia experience undue anxiety about…
- Nails, jogger's Very small semi-circular white spots on the nails. These spots may be found on the fingernails and…
- Donor lymphocyte infusion (DLI) A cancer treatment in which lymphocytes from a bone marrow donor are infused into the person who…
- Flail chest When enough ribs are broken (usually from a crush injury) to compromise the rigidity of the chest wall. On…
- Nerve, vestibulocochlear A nerve that is responsible for the sense of hearing and which is also pertinent to balance, to the body…
- Knee phenomenon See: Knee jerk
- Artificial heart A manmade heart. An artificial heart was temporarily implanted in 1969 by Denton Cooley in Houston, Texas…
- Homocystinuria A genetic disease due to an enzyme deficiency. Among other events, there is a buildup of the amino acid…