## Definitions

### from The American Heritage® Dictionary of the English Language, 4th Edition

• n. The process of making something square.
• n. Mathematics The process of constructing a square equal in area to a given surface.
• n. Astronomy A configuration in which the position of one celestial body is 90° from another celestial body, as measured from a third.

• n. the process of making something square; squaring
• n. a situation in which three celestial bodies form a right-angled triangle, the observer being located at the right angle
• n. the condition in which the phase angle between two alternating quantities is 90°
• n. A painting painted on a wooden panel

### from the GNU version of the Collaborative International Dictionary of English

• n. The act of squaring; the finding of a square having the same area as some given curvilinear figure; ; 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.
• n. A quadrate; a square.
• n. The integral used in obtaining the area bounded by a curve; hence, the definite integral of the product of any function of one variable into the differential of that variable.
• n. The position of one heavenly body in respect to another when distant from it 90°, or a quarter of a circle, as the moon when at an equal distance from the points of conjunction and opposition.

### from The Century Dictionary and Cyclopedia

• n. In geometry, the act of squaring an area; the finding of a square or several squares equal in area to a given surface.
• n. A quadrate; a square space.
• n. The relative position of two planets, or of a planet and the sun, when the difference of their longitudes is 90°.
• n. But when armillæ were employed to observe the moon in other situations … a second inequality was discovered, which was connected, not with the anomalistical, but with the synodical revolution of the moon, disappearing in conjunctions and oppositions, and coming to its greatest amount in quadratures. What was most perplexing about this second inequality was that it did not return in every quadrature, but, though in some it amounted to 2° 39′ , in other quadratures it totally disappeared.
• n. A side of a square.
• n. In electricity, phase difference of 90°, or one quarter period.

• n. the construction of a square having the same area as some other figure

## Etymologies

• This would be an excellent word to use in slang/vernacular. Being the process of making "square." In the slang sense you could tell your friends they excel at quadrature (meaning they are square in the slang sense). Very excellent.

March 6, 2010