Learn how to say Quadrature correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word quadrature:
1 Mathematics the process of constructing a square with an area equal to that of a circle, or of another figure bounded by a curve.
2 Astronomy the position of the moon or a planet when it is 90° from the sun as viewed from the earth.
3 Electronics a phase difference of 90 degrees between two waves of the same frequency, as in the colour difference signals of a television screen.
mid 16th century (as a mathematical term): from Latin quadratura ‘a square, squaring’, from quadrare (see quadrate)