Meaning of QUADRATURE in English
( a. )
The act of squaring; the finding of a square having the same area as some given curvilinear figure; as, the quadrature of a circle; the operation of finding an expression for the area of a figure bounded wholly or in part by a curved line, as by a curve, two ordinates, and the axis of abscissas.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012