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).
Bicycle helmet
A well-known but often neglected device designed to protect the head of a bicyclist. Helmets decrease the risk of head injuries (traumatic brain damage) by about 85%. However, only about 18% of bicyclists in the US use helmets all or most…
Read the definitionRandom terms
Show more- Birth control, emergency See: Emergency contraception
- Spinal fusion Spinal fusion: A surgical procedure in which two or more of the vertebrae in the spine are united together so…
- Flu vaccine, nasal-spray See: Nasal flu vaccine
- Exonuclease An enzyme that cleaves nucleotide bases sequentially from the free ends of a nucleic acid (DNA or RNA)
- Staphylococcal infection Infection with one of the Staphylococcal bacteria. Staph infection can cause pus-filled abscesses on the skin…
- Polymorphic Pertaining to a polymorphism, a variation in the DNA that is too common to be due merely to new mutation. A…
- Anal incontinence Inability to hold feces in the rectum. This is due to failure of voluntary control over the anal sphincters…
- Myocyte A muscle cell. From myo-, muscle + -cyte, cell = muscle cell. 'Remaining young at heart is a desirable but…
- Anxiety disorder, social Excessive fear of embarrassment in social situations that is extremely intrusive and can have debilitating…
- Cockle The ventricle of the heart. The origin of the word cockle in this sense is a matter of conjecture but in…
- Lung transplant The first lung transplant was done by the American surgeon James Hardy (1918-) in 1964.
- Eyelash One of the familiar stiff hairs that project from the margin of the eyelid. Eyelashes tend to be noticed…