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).
Introitus, facial canal
In anatomy, an introitus is an entrance, one that goes into a canal or hollow organ. The introitus of the facial canal is the entrance to the facial canal, a passage in the temporal bone of the skull through which the facial nerve (the 7th…
Read the definitionRandom terms
Show more- Ribozyme An RNA molecule that can catalyze its own chemical reactions
- Syndrome, radial aplasia-thrombocytopenia See Syndrome, TAR
- Aerobic Oxygen-requiring. Aerobic bacteria need oxygen to grow. Aerobic exercise requires the heart and lungs to work…
- Cell, antigen-presenting A cell that can 'present' antigen in a form that T cells can recognize it. The cells that can 'present'…
- Elephantiasis Lymphatic filariasis, a mosquito-borne parasitic disease caused by tiny thread-like worms that live in the…
- Disease, degenerative joint Also known as osteoarthritis, this type of arthritis is caused by inflammation, breakdown and eventual loss…
- Duodenal biliary drainage Duodenal biliary drainage: A procedure used to diagnose gallstones when suspicion is high but other tests are…
- Bacterium The singular of bacteria
- Mitral valve prolapse Mitral valve prolapse: Drooping down or abnormal bulging of the mitral valve's cusps backward into the atrium…
- Incompatibility, Rh The state of mother and fetus having different Rh blood group types so that their Rh types are…
- Involuntary Done other than in accordance with the conscious will of the individual. The opposite of voluntary. The terms…
- Arhythmia We do not usually give a misspelling but this is a frequent misspelling of arrhythmia (with two r's), meaning…