Definition of triangle
1 : a polygon having three sides — compare spherical triangle
2a : a percussion instrument consisting of a rod of steel bent into the form of a triangle open at one angle and sounded by striking with a small metal rodb : a drafting instrument consisting of a thin flat right-angled triangle of wood or plastic with acute angles of 45 degrees or of 30 degrees and 60 degrees
3 : a situation in which one member of a couple is involved in a love affair with a third person
Examples of triangle in a Sentence
She cut the sandwiches into triangles.
Recent Examples of triangle from the Web
But the defense argues that the three men were part of a love triangle.
Hey, Phil Jackson: How did that triangle offense work out for the Knicks?
Outline the triangle on your nose and then draw stitch-like dashes around it.
What kind of shape is a triangle offense that doesn’t produce?
Already, the Knicks are benefiting from leaving behind the triangle offense, an often perplexing system that, along with players such as Michael Jordan and Shaq, propelled Jackson to a fist full of championship rings.
Knicks owner Jim Dolan finally pulled the plug on the triangle offense, dumping president of basketball operations Phil Jackson on Wednesday morning.
Cut the watermelon into 1/2-inch-thick triangles and cut off the rinds.
Melissa Ponder: For sure. Peter Van Sant And a love triangle can create a motive for murder.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'triangle.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of triangle
Middle English, from Anglo-French, from Latin triangulum, from neuter of triangulus triangular, from tri- + angulus angle
First Known Use: 14th centurySee Words from the same year
TRIANGLE Defined for English Language Learners
Definition of triangle for English Language Learners
: a shape that is made up of three lines and three angles
: something that is shaped like a triangle
: a musical instrument that is made of a steel rod bent into the shape of a triangle and that you play by hitting with a metal rod
TRIANGLE Defined for Kids
Definition of triangle for Students
1 : a flat geometric figure that has three sides and three angles
2 : something that has three sides and three angles a triangle of land
3 : a musical instrument made of a steel rod bent in the shape of a triangle with one open angle
Seen and Heard
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