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.
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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).
Surgery, retrograde intrarenal (RIRS)
Retrograde intrarenal surgery (RIRS) is a procedure for doing surgery within the kidney using a viewing tube called a fiberoptic endoscope. In RIRS the scope is placed through the urethra (the urinary opening) into the bladder and then…
Read the definitionRandom terms
Show more- Myasthenia gravis Prefix that denotes a relationship to fungus. From the Greek mykes, meaning fungus.
- Isochromosome An abnormal chromosome with two identical arms due to duplication of one arm and loss of the other arm…
- Apoplexy A venerable term for a stroke, a cerebrovascular accident (CVA), often associated with loss of consciousness…
- Erythrocyte membrane protein band 4.1 (EPB41) See Elliptocytosis
- Macular hole A hole in the macula, the tiny oval area made up of millions of nerve cells located at the center of the…
- Yawn Involuntary opening of the mouth, often caused by suggestion. Yawning is characterized by breathing first…
- Score, Gleason A grading system for prostate carcinoma. See Gleason score
- Interferon Interferon: A naturally occurring substance that interferes with the ability of viruses to reproduce…
- Spasmodic dysphonia A voice disorder caused by involuntary movements of one or more muscles of the larynx or voice box. People…
- Delivery, footling There are single-footling or double-footling deliveries depending upon whether the presenting part of the…
- Viscus An internal organ of the body, specifically one within the chest (as the heart or lungs) or abdomen (as the…
- Pathogenetic Pertaining to the pathogenesis of a disease, to exactly how it develops and the precise chain of events…