/-{-{dùnjiǎo sānjiǎoxíng}-}-/, /tɵn²² kɔːk̚³ saːm⁵⁵ kɔːk̚³ jɪŋ²¹/, /deon6 gok3 saam1 gok3 jing4/, /doen6 gok8 saam1 gok8 jing4/, /duennjeau sanjeaushyng/, /dên6 gog3 sam1 gog3 ying4/, /dùnjiǎo sanjiǎosíng/、/ㄉㄨㄣˋ ㄐㄧㄠˇ ㄙㄢ ㄐㄧㄠˇ ㄒㄧㄥˊ/
(幾何學) 有一個內角是鈍角的三角形。