MedicalVocabulary.org
Medical vocabulary with 16,436 clear, complete and reliable definitions.
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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).
Extremophile
An organism that lives under extreme conditions. An example of an extremophile is Methanococcus jannaschii, a microbe that lives near hydrothermal vents deep beneath the sea. The term extremophile was coined late in the 20th century from…
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Show more- Baylisascaris Infection by the raccoon roundworm. Baylisascaris procyonis is found commonly in raccoons. When infective…
- Ferritin The major iron storage protein. The blood level of ferritin serves as an indicator of the amount of iron…
- Anti- Prefix generally meaning 'against, opposite or opposing, and contrary.' In medicine, anti- often connotes…
- Exotropia Divergent gaze. Also called external strabismus or, pejoratively, wall-eyed (like a walleyed pike).
- Infection, rotavirus Rotavirus: A leading cause of severe winter diarrhea in young children. Each year, rotavirus (RV) causes an…
- Vincent infection This is trench mouth, a progressive painful infection with ulceration, swelling and sloughing off of dead…
- Bernstein test A test to find out if heartburn is caused by acid in the esophagus and so to diagnose GERD (gastroesophageal…
- YAC YAC stands for yeast artificial chromosome, a vector (carrier) created and used in the laboratory to clone…
- Disease, von Recklinghausen Neurofibromatosis type 1
- Extrafallopian A term meaning 'outside the fallopian tube.' There are two fallopian tubes in female mammals, including human…
- Viral encephalitis Inflammation of the brain as a result of virus infection. There are many viruses that cause viral encephalitis
- Respiratory Having to do with respiration, the exchange of oxygen and carbon dioxide. From the Latin re- (again) +…