kwŏdrə-cho͝or
The process of making something square.
noun
(mathematics) The process of constructing a square equal in area to a given surface.
noun
(astronomy) A configuration in which the position of one celestial body is 90° from another celestial body as measured from a third body, typically Earth.
noun
The act of squaring.
noun
The construction of a square equal in area to a given surface.

noun
(astron.) A configuration of a superior planet or the moon in which the angle between it and the sun, as seen from the earth, is 90°
noun
The process of constructing a square equal in area to a given surface.
A configuration in which the position of one celestial body is 90° from another celestial body, as measured from a third. For example, the half moon lies in quadrature from the Sun when Earth is the reference point.
See QAM.
The process of making something square; squaring.
noun
(mathematics)
noun
(astronomy) A situation in which three celestial bodies form a right-angled triangle, the observer being located at the right angle.

When the Moon is in quadrature, it appears in the sky as a half-moon.

noun
(physics) The condition in which the phase angle between two alternating quantities is 90°
noun
(art) A painting painted on a wooden panel.
noun