Arc-boutant

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historical examples

the flying b-ttress, or arc-boutant is carried across by an arch from one wall to another.
the children of westminster abbey rose g. kingsley

noun (pl) arcs-boutants (arkbutɑ̃)
another name for flying b-ttress

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Arc cosecant
the angle, measured in radians, that has a cosecant equal to a given number. symbol: csc −1. abbreviation: arc csc; arc cosecant the inverse of the cosecant function.
Arc cosine
trigonometry. the angle, measured in radians, that has a cosine equal to a given number. symbol: cos −1. abbreviation: arc cos; arc cosine the inverse of the cosine function.
Arc cotangent
the angle, measured in radians, that has a cotangent equal to a given number. symbol: cot −1. abbreviation: arc cot. arc cotangent the inverse of the cotangent function.