### Definition of Rectangular

1. Adjective. Having four right angles. "A rectangular figure twice as long as it is wide"

Similar to: Angular, Angulate
Derivative terms: Rectangle, Rectangularity

2. Adjective. Having a set of mutually perpendicular axes; meeting at right angles. "A rectangular Cartesian coordinate system"
Exact synonyms: Orthogonal
Similar to: Perpendicular
Derivative terms: Orthogonality

### Definition of Rectangular

1. a. Right-angled; having one or more angles of ninety degrees.

### Definition of Rectangular

1. Adjective. Having a shape like a rectangle. ¹

¹ Source: wiktionary.com

### Rectangular Pictures

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### Lexicographical Neighbors of Rectangular

 rectal prolapserectal reflexrectal shelfrectal sinusesrectal valvesrectal valvotomyrectal varicositiesrectal varicosityrectal veinrectal venous plexus rectalgiarectallyrectanglerectangledrectanglesrectangular (current term)rectangular amputationrectangular coordinatesrectangular numberrectangularity rectangularlyrectectomyrectirecti-rectifiabilityrectifiablerectificationrectificationsrectificatorrectified

### Literary usage of Rectangular

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

1. Theory and Calculation of Alternating Current Phenomena by Charles Proteus Steinmetz (1897)
"This representation of the sine wave by its rectangular components is very ... Since the rectangular components a and b are the horizontal and the vertical ..."

2. Higher Mathematics for Students of Chemistry and Physics: With Special by Joseph William Mellor (1902)
"The rectangular or Equilateral Hyperbola. If we put a = b in the standard equation to the hyperbola, the result is a special case of the hyperbola for which ..."

3. Theory and Calculation of Alternating Current Phenomena by Charles Proteus Steinmetz (1897)
"7 and <3, we can represent it by its rectangular coordinates, a and b (Fig. ... This representation of the sine wave by its rectangular components is very ..."

4. A Manual of Spherical and Practical Astronomy: Embracing the General by William Chauvenet (1874)
""We mostly consider but two cases: First. Transformation of rectangular co-ordinates to a new origin, without changing the system of spherical ..."

5. A Manual of Spherical and Practical Astronomy: Embracing the General by William Chauvenet (1874)
"We thus repeat the same system of spherical co-ordinates with various origins and different systems of rectangular co-ordinates, the planes of reference, ..."

6. A Manual of Spherical and Practical Astronomy: Embracing the General by William Chauvenet (1900)
"Transformation of rectangular co-ordinates to a new origin, without changing the system of spherical co-ordinates. The general planes of reference which ..."

7. Mirrors, Prisms and Lenses: A Text-book of Geometrical Optics by James Powell Cocke Southall (1918)
"rectangular Combinations of Plane Mirrors.—In a rectangular combination of two plane ... Two rectangular prisms are placed in the tube of the instrument, ..."

8. A Treatise on Universal Algebra: With Applications by Alfred North Whitehead (1898)
"(3) Two alternate sides of any rectangular figure intersect on the (anti-spatial) ... 2] let A, B, and G be three consecutive sides of a rectangular figure, ..."