|trig the branch of mathematics concerned with the properties of trigonometric functions and their application to the determination of the angles and sides of triangles. Used in surveying, navigation, etc|
|[C17: from New Latin trigōnometria from Greek trigōnon triangle]|
|a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.|
|a fool or simpleton; ninny.|
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