- the act of squaring.
- Mathematics.
- the act or process of finding a square equal in area to a given surface, especially a surface bounded by a curve.
- the act or process of finding an area or calculating an integral, especially by numerical methods.
- a definite integral.
- Astronomy.
- the situation of two heavenly bodies when their longitudes differ by 90°.
- either of the two points in the orbit of a body, as the moon, midway between the syzygies.
- (of the moon) those points or moments at which a half moon is visible.
- the relation between two signals having the same frequency that differ in phase by 90°.
- the process of determining a square having an area equal to that of a given figure or surface
- the process of making square or dividing into squares
- a configuration in which two celestial bodies, usually the sun and the moon or a planet, form an angle of 90° with a third body, usually the earth
- the relationship between two waves that are 90° out of phase
