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English definition of “trigone”

trigone

noun [C] uk   /ˈtraɪ.ɡəʊn/ us    /ˈtrɑɪ.ɡoʊn/ specialized
a three-sided area on the inner surface of the bladder (= the bag where urine collects): Since most of these tumours involve the trigone, they are rarely operable.Substances and structures in the body
(Definition of trigone from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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