triangle

英 ['traɪæŋg(ə)l] 美['traɪæŋɡl]

• n. 三角（形）；三角关系；三角形之物；三人一组

1. a three-sided polygon

2. something approximating the shape of a triangle;

"the coastline of Chile and Argentina and Brazil forms two legs of a triangle"

3. any of various triangular drafting instruments used to draw straight lines at specified angles

4. a percussion instrument consisting of a metal bar bent in the shape of an open triangle