Definition of Rectangle

1. Noun. A parallelogram with four right angles.

Specialized synonyms: Foursquare, Square, Box
Generic synonyms: Parallelogram
Derivative terms: Rectangular

Definition of Rectangle

1. n. A four-sided figure having only right angles; a right-angled parallelogram.

2. a. Rectangular.

Definition of Rectangle

1. Noun. (geometry) A quadrilateral having opposing sides parallel and four right angles. ¹

¹ Source:

Definition of Rectangle

1. [n -S]

Medical Definition of Rectangle

1. A four-sided figure having only right angles; a right-angled parallelogram. As the area of a rectangle is expressed by the product of its two dimensions, the term rectangle is sometimes used for product; as, the rectangle of a and b, that is, ab. Origin: F, fr. L. Rectus right + angulus angle. See Right, and Angle. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Rectangle

rectal fistula
rectal folds
rectal plexuses
rectal prolapse
rectal reflex
rectal shelf
rectal sinuses
rectal valves
rectal valvotomy
rectal varicosities
rectal varicosity
rectal vein
rectal venous plexus
rectangle (current term)
rectangular amputation
rectangular coordinates
rectangular number

Literary usage of Rectangle

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Elements of Euclid: The Errors, by which Theon, Or Others, Have Long Ago by Robert Simson, Euclid (1838)
"equal to the rectangle EA, AH, that is, to the given rectangle C, D; and that which was required is done: but if EG, GL be unequal, ..."

2. Treatise on Conic Sections by Apollonius, Thomas Little Heath (1896)
"But the rectangle under K'Q', KQ has to the rectangle under K'RK the ratio compounded of that of Q'K' to K'R, that is, of rQ to QQ', and of that of QK to KR ..."

3. The Thirteen Books of Euclid's Elements by Euclid, Johan Ludvig Heiberg (1908)
"29] and let the square on D be equal to the rectangle A, B. ADBC E- . Therefore the square on D is medial; therefore D is also medial. [x. ..."

4. Handbook of Building Construction: Data for Architects, Designing and by George Albert Hool, Nathan Clarke Johnson (1920)
"The S-polygon for a 2 X 12-in. rectangle will b« computed ai constructed. ... Since the sides of the rectangle aie all parallel to the principal axes of the ..."

5. Public School Methods (1921)
"To illustrate: Suppose the sides of a rectangle are as 3 to 4, and the area 3 acres, ... A rectangle 3 by 4 rods is similar to the whole rectangle. ..."

6. The Theory and Practice of Absolute Measurements in Electricity and Magnetism by Andrew Gray (1893)
"GMD of Taking first the line and rectangle, as in Fig. (69). and putting Straight "i "' for the lengths AB and CD, we suppose the rectangle to be Line from ..."

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