Definition of trigone in English:

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Pronunciation: /trɪˈɡəʊn/
Pronunciation: /ˈtrʌɪɡəʊn/


A triangular region or tissue, particularly the area at the base of the urinary bladder, between the openings of the ureters and urethra.
Example sentences
  • Intraventricular meningiomas are rare but typically occur around the choroid plexus in the trigone of the lateral ventricles.
  • It can appear as a solid infiltrative lesion or as a polypoid intraluminal mass that arises in the base of the bladder or in the region of the bladder trigone.
  • Because the urethra and trigone are estrogen-dependent tissues, estrogen deficiency can contribute to urinary incontinence and urinary dysfunction.


Mid 19th century: from French, from Latin trigonum 'triangle'.

For editors and proofreaders

Line breaks: tri|gone

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