square (redirected from square off)

square, closed plane figure bounded by four straight line segments of equal length and meeting at right angles. The points of intersection of the lines, or sides, are called vertices. The diagonals of a square are the two lines joining opposite vertices; they are of equal length and are the perpendicular bisectors of one another. The perimeter of a square is the sum of the lengths of its sides, or P=4s, where s is the length of a side. The area enclosed by a square is A=s². The square is one of the commonest geometric figures and has long had various symbolic meanings in religion and art.

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square

In measurement, a device consisting of two straightedges set at a right angle. It is used by carpenters and machinists to check the correctness of right angles, as a guide when drawing lines on materials before cutting, or for locating holes. In mechanical drawing or drafting, a T-shaped instrument known as a T square is used to establish a horizontal reference on the drafting board.

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square

1. a plane geometric figure having four equal sides and four right angles

2. an open area in a town, sometimes including the surrounding buildings, which may form a square

3. Maths the product of two equal factors; the second power

4. an instrument having two strips of wood, metal, etc., set in the shape of a T or L, used for constructing or testing right angles

5. Cricket the closely-cut area in the middle of a ground on which wickets are prepared

6. Rowing the position of the blade of an oar perpendicular to the surface of the water just before and during a stroke

7. Astrology an aspect of about 90° between two planets, etc

8. having or forming one or more right angles or being at right angles to something

9. 

a. denoting a measure of area of any shape

b. denoting a square having a specified length on each side

10. Cricket at right angles to the wicket

11. Nautical (of the sails of a square-rigger) set at right angles to the keel

12. (of a horse's gait) sound, steady, or regular

13. Maths (of a matrix) having the same number of rows and columns

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(language)

Square - A query language, a precursor to SQL. ["Specifying Queries as Relational Expressions: The SQUARE Data Sublanguage", R.E. Boyce et al, CACM 18(11):621-628 (Nov 1975)].