| 单词 | triangle |
| 释义 | triangle —triangled, adj. /truy"ang'geuhl/, n. 1. a closed plane figure having three sides and three angles. 2. a flat triangular piece, usually of plastic, with straight edges, used in connection with a T square for drawing perpendicular lines, geometric figures, etc. 3. any three-cornered or three-sided figure, object, or piece: a triangle of land. 4. a musical percussion instrument that consists of a steel triangle, open at one corner, that is struck with a steel rod. 5. a group of three; triad. 6. a situation involving three persons, esp. one in which two of them are in love with the third. 7. (cap.) Astron. the constellation Triangulum. [1350-1400; ME < L triangulum, n. use of neut. of triangulus three-cornered. See TRI-, ANGLE1] |
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