Definition of TRIANGLES

• A plane figure with three straight sides and three angles
• A thing shaped like such a figure
• A situation involving three people or things, esp. an emotional relationship involving a couple and a third person with whom one of them is involved
• A musical instrument consisting of a steel rod bent into a triangle and sounded by being struck with a small steel rod
• TRIANGLE, a polygon having three sides [n]
• A frame used to position the balls in pool and snooker
• A drawing instrument in the form of a right triangle
• A frame of three halberds joined at the top to which a soldier was bound for flogging