quadrant

  1. a quarter of the circumference of a circle
  2. a quarter of the circumference of a circle
  3. any of the four areas into which a plane is divided by two orthogonal coordinate axes
  4. the area enclosed by two perpendicular radii of a circle
  5. a measuring instrument for measuring altitude of heavenly bodies

quadrant

a device for measuring the height of stars in the sky which was used in the past for calculatingdirections when travelling across the sea

quadrant

Instrument used in navigation for measuring altitude, made up of a quarter-circle of wood or metal marked with a graded scale of angles. From the late 16thC quadrants made of brass, or brass and mahogany, with a pivoted radius, or index arm, came into use.

quadrant

Type: Term Pronunciation: kwah′drănt Definitions: 1. One quarter of a circle. 2. anatomy roughly circular areas are divided for descriptive purposes into quadrants. The abdomen is divided into right upper and lower and left upper and lower quadrants by a horizontal and a vertical line intersecting at the umbilicus. The breast is divided ...
Found on http://www.medilexicon.com/medicaldictionary.php?t=74603

quadrant

[n] - a quarter of the circumference of a circle 2. [n] - a quarter of the circumference of a circle 3. [n] - any of the four areas into which a plane is divided by two orthogonal coordinate axes 4. [n] - the area enclosed by two perpendicular radii of a circle 5. [n] - a measuring instrument for measuring altitude of heavenl...
Found on http://www.webdictionary.co.uk/definition.php?query=quadrant

Quadrant

denotes one of four equal sections in the mouth. The upper right, upper left, lower right or the lower left.
Found on http://www.cosmeticdentistryguide.co.uk/glossary.html

Quadrant

Code name for the first Quebec conference (Churchill & Roosevelt)- August 1943
Found on http://www.secondworldwar.co.uk/glossq.html

Quadrant

One quarter of a circle.
Found on http://www.gadsbywicks.co.uk/uploaded/3822.pdf

Quadrant

Quadrant: A quarter. For example, the liver is in the right upper quadrant of the abdomen.
Found on http://www.medterms.com/script/main/art.asp?articlekey=5162

Quadrant

Convex moulding of quarter circle profile, usually between fillets.
Found on http://www.crsbi.ac.uk/resources/glossary.html

Quadrant

Quad'rant noun [ Latin quadrans , -antis , a fourth part, a fourth of a whole, from quattuor four: confer French quadrant , cadran . See Four , and confer Cadrans .] 1. The fourth part; the quarter. [ Obsolete] Sir T. Browne. 2.
Found on http://www.encyclo.co.uk/webster/Q/1

quadrant

<dentistry> The four parts of your mouth, that is the upper left, the upper right, the lower left, and the lower right. ... (08 Jan 1998) ...
Found on http://www.encyclo.co.uk/local/20973

quadrant

noun a measuring instrument for measuring altitude of heavenly bodies
Found on http://wordnetweb.princeton.edu/perl/webwn?s=quadrant

quadrant

noun the area enclosed by two perpendicular radii of a circle
Found on http://wordnetweb.princeton.edu/perl/webwn?s=quadrant

quadrant

right angle noun a quarter of the circumference of a circle
Found on http://wordnetweb.princeton.edu/perl/webwn?s=quadrant

quadrant

noun a quarter of the circumference of a circle
Found on http://wordnetweb.princeton.edu/perl/webwn?s=quadrant

quadrant

(kwod´rәnt) one fourth of the circumference of a circle. one of four corresponding parts, as of the abdominal surface, the dentition, the field of vision, or the tympanic membrane.
Found on http://www.encyclo.co.uk/local/21001

Quadrant

• (n.) The fourth part; the quarter. • (n.) The quarter of a circle, or of the circumference of a circle, an arc of 90
Found on http://thinkexist.com/dictionary/meaning/quadrant/

quadrant

(from the article `Hadley, John`) In 1730, independently of Thomas Godfrey of Philadelphia, Hadley invented a quadrant (actually a double-reflecting octant) for measuring the ... The first instruments used at sea for elevation angle measurements seem to have been the quadrant and the astrolabe, long known to astronomers. For ... [2 ...
Found on http://www.britannica.com/eb/a-z/q/3

Quadrant

(from the article `McAuley, James Phillip`) ...at the University of Sydney, he taught for a while, served with Australian forces in World War II, and then became a senior lecturer at the ...
Found on http://www.britannica.com/eb/a-z/q/3

Quadrant

HMAS Quadrant was a British-built Australian Queensborough Class destroyer of 1705 tons displacement launched in 1942 and lent to the Royal Australian Navy in 1945. HMAS Quadrant was powered by two Admiralty 3-drum type boilers and carried a complement of 220. She was armed with four 4.7 inch guns; four 2 pdr guns; two 40 mm anti-aircraft guns; 20 ...
Found on http://www.probertencyclopaedia.com/browse/RQ.HTM

Quadrant

[motorcycles] Quadrant was one of the earliest British motorcycle manufacturers, established in Birmingham in 1901. Famous for their big singles, Quadrant pioneered many innovations that proved important for motorcycle development but struggled after the First World War and the company was wound up in 1928. ==History== Founded by Walter and...
Found on http://en.wikipedia.org/wiki/Quadrant_(motorcycles)

Quadrant

[plane geometry] The axes of a two-dimensional Cartesian system divide the plane into four infinite regions, called quadrants, each bounded by two half-axes. These are often numbered from 1st to 4th and denoted by Roman numerals: I (where the signs of the two coordinates are (+,+)), II (−,+), III (−,−), and IV (+,−). When the axes a...
Found on http://en.wikipedia.org/wiki/Quadrant_(plane_geometry)

Quadrant

[architecture] Quadrant in architecture refers to a curve in a wall or a vaulted ceiling. Generally considered to be an arc of 90 degrees - one quarter of a circle, or a half of the more commonly seen architectural feature - a crescent. The quadrant curve in architecture was a feature popularised by Palladio who used it often for the wings ...
Found on http://en.wikipedia.org/wiki/Quadrant_(architecture)

Quadrant

[instrument] A quadrant is an instrument that is used to measure angles up to 90°. It was originally proposed by Ptolemy as a better kind of astrolabe. Several different variations of the instrument were later produced by medieval Muslim astronomers. ==Types== There are several types of quadrants: They can also be classified as ==Geometric...
Found on http://en.wikipedia.org/wiki/Quadrant_(instrument)
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