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).
Pest (plague)
An infectious disease due to a bacteria called Yersinia pestis. Y. pestis mainly infects rats and other rodents. Rodents are the prime reservoir for the bacteria. Fleas function as the prime vectors carrying the bacteria from one species…
Read the definitionRandom terms
Show more- Whipple disease A form of intestinal malabsorption (an inability to absorb nutrients from the intestine) described in 1907 by…
- Skin graft, mesh A graft technique in which multiple pieces of skin are carefully arranged to cover an area. This technique is…
- Philippine hemorrhagic fever A syndrome due to the dengue virus that tends to affect children under 10, causing abdominal pain, hemorrhage…
- Ankle twist See: Ankle sprain
- Hairball A wad of swallowed hair. Hairballs can sometimes be found to cause blockage of the digestive system…
- Sarcoma, metastatic A sarcoma that is spreading into other body tissues through the lymphatic system. The most common site for…
- Congenital clasped thumb with mental retardation See: Clasped thumbs and mental retardation
- Quadriceps Although the term 'quadriceps' technically may refer to any four-headed muscle, it usually refers to and is…
- Mutation A permanent change, a structural alteration, in the DNA or RNA. In humans and many other organisms, mutations…
- Disease, Gerstmann-Straussler-Scheinker See: Gerstmann-Sträussler-Scheinker syndrome
- Test, Venereal Disease Research Laboratory A blood test for syphilis. Venereal Disease Research Laboratory is commonly abbreviated VDRL. A negative…
- Legg disease See Legg-Calve-Perthes disease