i ‧ sos ‧ ce ‧ les tri ‧ an ‧ gle /aɪˌsɒsəliːz ˈtraɪæŋɡ ə l $ -ˌsɑː-/ BrE AmE noun [countable] technical
a ↑ triangle in which two of the sides are the same length ⇨ ↑ equilateral triangle
i ‧ sos ‧ ce ‧ les tri ‧ an ‧ gle /aɪˌsɒsəliːz ˈtraɪæŋɡ ə l $ -ˌsɑː-/ BrE AmE noun [countable] technical
a ↑ triangle in which two of the sides are the same length ⇨ ↑ equilateral triangle
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012