Crossword clues for quadrant
quadrant
Longman Dictionary of Contemporary English
The Collaborative International Dictionary
Octant \Oc"tant\, n. [L. octans, -antis. fr. octo eight. See Octave.]
(Geom.) The eighth part of a circle; an arc of 45 degrees.
(Astron. & Astrol.) The position or aspect of a heavenly body, as the moon or a planet, when half way between conjunction, or opposition, and quadrature, or distant from another body 45 degrees.
An instrument for measuring angles (generally called a quadrant), having an arc which measures up to 9O[deg], but being itself the eighth part of a circle. Cf. Sextant.
(Math. & Crystallog.) One of the eight parts into which a space is divided by three co["o]rdinate planes.
Douglas Harper's Etymology Dictionary
late 14c., "a quarter of a day, six hours," from Middle French quadrant, from Latin quadrantem (nominative quadrans) "fourth part," also the name of a coin worth a quarter of an as, noun use of present participle of quadrare "to make square; put in order, arrange, complete; run parallel, be exact," figuratively "to fit, suit, be proper," related to quadrus "a square," quattuor "four" (see four). The surveying instrument is first so called c.1400, because it forms a quarter circle. Related: Quadrantal.
Wiktionary
n. 1 One of the four sections made by dividing an area with two perpendicular lines. 2 (context mathematics English) The four regions of the Cartesian plane bounded by the x-axis and y-axis. 3 (context geometry English) One fourth of a circle or disc; a sector with an angle of 90°. 4 (context nautical English) A measuring device with a graduated arc of 90° used in locating an altitude.
WordNet
n. a quarter of the circumference of a circle [syn: right angle]
a quarter of the circumference of a circle [syn: quarter-circle]
any of the four areas into which a plane is divided by two orthogonal coordinate axes
the area enclosed by two perpendicular radii of a circle
a measuring instrument for measuring altitude of heavenly bodies
Wikipedia
Quadrant may refer to:
Primary (geometrical) meanings:
- Quadrant (circle), a circular sector equal to one quarter of a circle, or half a semicircle
- Quadrant (plane geometry), a sector of a two-dimensional cartesian coordinate system
- Quadrant (solid geometry)
- A quadrant or section in a city street nomenclature system, see Address (geography)#Quadrants
Secondary meanings:
- Quadrant (anatomy), a division of the abdominal cavity
- Quadrant (Antarctica), one of four wedge-shaped divisions of Antarctica delimited by 90° lines of longitude converging at the South Pole
- Quadrant (architecture) a building which arcs in 90 degree manner
- Quadrant (astronomy), a rectangular division of the celestial sphere
- Quadrant (dentistry), a division of the dentition in humans and other species
- Galactic quadrant, one of four circular sectors in the division of the Milky Way galaxy
- Quadrant (instrument), an angle or time measuring instrument
- Quadrant (motorcycles), one of the earliest British motorcycle manufacturers, established in Birmingham in 1901
Proper names:
- Quadrant Cycle Company, 1899 manufacturers in Britain of the Quadrant motorcar
- Quadrant (magazine), an Australian journal
- Quadrant (album), a 2015 album by Joe Pass and Milt Jackson
Names of places etc.
- Quadrant Bus Station, Swansea Wales
- Quadrant Shopping Centre, Swansea, Wales
- Quadrant Park, a nightclub in Liverpool, Merseyside
- Quadrant:MK, Network Rail's headquarters campus in Milton Keynes
- HMS Quadrant (G11), a Second World War British/Australian warship
- First Quebec Conference, 1943 (codenamed "QUADRANT")
- Quadrant Records, an independent record label
- Triumph Quadrant, a four-cylinder motorcycle
- The Quadrant, housing estate in Kingston upon Hull, UK
Quadrant is an Australian literary and cultural journal. Quadrant reviews literature, as well as featuring essays on ideas and topics such as politics, history, universities, and the arts. It also publishes poetry and short stories.
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.
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 are drawn according to the mathematical custom, the numbering goes counter-clockwise starting from the upper right ("northeast") quadrant.
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 and colonnades which linked his classical style villas to their service wings and out-buildings. However, curved quadrant buildings should not be confused with the canted facades of Baroque architecture or the slightly curved buildings of the era such as the Quattro Canti in Palermo.
The quadrant vault, a feature of Tudor architecture, is a curving interior - a continuous arc usually of brick, as seen in a tunnel - as opposed to a ribbed vault where a framework of ribs or arches supports the curves of the vault. A quadrant arch was often employed in Romanesque architecture to provide decorative support, as seen in the flying buttresses of Notre-Dame de Chartres built in the second half of the 12th century.
During the 18th century, the quadrant once again became a popular design shape for the terraces of smart houses in fashionable spa towns such as Buxton. Henry Currey's "Quadrant", built to rival the architecture of Bath, is considered one of Buxton's finest buildings.
'''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.
The human abdomen is divided into regions by anatomists and physicians for purposes of study, diagnosis, and therapy. In the four-region scheme, four quadrants allow localisation of pain and tenderness, scars, lumps, and other items of interest, narrowing in on which organs and tissues may be involved. The quadrants are referred to as the left lower quadrant, left upper quadrant, right upper quadrant and right lower quadrant, as follows below. These terms are not used in comparative anatomy, since most other animals do not stand erect.
- The left lower quadrant (LLQ) of the human abdomen is the area left of the midline and below the umbilicus. The LLQ includes the left iliac fossa and half of the left flank region. The equivalent term for animals is left posterior quadrant.
- The left upper quadrant (LUQ) extends from the median plane to the left of the patient, and from the umbilical plane to the left ribcage. The equivalent term for animals is left anterior quadrant.
- The right upper quadrant (RUQ) extends from the median plane to the right of the patient, and from the umbilical plane to the right ribcage. The equivalent term for animals is right anterior quadrant.
- The right lower quadrant (RLQ) extends from the median plane to the right of the patient, and from the umbilical plane to the right inguinal ligament. The equivalent term for animals is right posterior quadrant.
Usage examples of "quadrant".
In understandably emphasizing the importance and the urgency of eco-holistic fit, the holists have absolutized the Lower-Right quadrant, which, in thus sealing it off from any true integration, condemns it to the fate of all fragments.
The bullet had entered his back and exited from his right upper quadrant, where the liver and vena cava were located.
In the first quadrant, going clockwise, is the kitchen, separated from the family room by six-meter-high accordion screens, painted with scenes from Egyptian tombs by Chib, his too subtle comment on modern food.
What seemed the upper quadrant of a slowly turning and very thick wheel was the curving back of a dolphin, and always good for a yell, and sometimes a dozen or so of them would play games with the ship, racing to cut across the bow from side to side and so close that it seemed the cutwater must hit them.
At a maximum of warp eight, Equinox was in the Delta Quadrant for the rest of their lives and then some.
Nimisha brought the Fiver out of warp space at precisely the coordinates she had designated in the Delta quadrant.
The playne labiall compassing about the quadrant Orchyard comming out from the walles as a seate for these aforesayde garden pottes and trees to stande vppon, was subcoronized with golde by excellent lyneamentes wrought and adorned.
The tarnsmen had approached from the dark quadrant, away from the moons, low, not more than a few feet from the ground, hidden by the shadows of the world, and then had, without warning, little more than a quarter of a pasang from the keep, swept into the air, the first wave striking at the wire, the second, third and fourth waves dropping through the cut, billowing wire to the parapets, roofs and courtyard of the keep.
There was nothing out here in this section of the Syar Quadrant, not even an asteroid field.
Lieutenant Ryzen was a slender unjoined Trill whose homesickness for the Alpha Quadrant had driven the Doctor to distraction.
In 2289, one such expedition made its first contact with what proved to be a planet of the Vegan Tyranny, an interstellar culture which, we now know, had ruled most of this quadrant of the galaxy for eight to ten thousand years, and was still in the process of expanding.
OLIVER DORMAN, of the armed merchant barque Olive Branch, of Arundel, ten guns and twenty-five men, stared calculatingly upward, quadrant in hand, his grey fringe of chin whisker seeming to point accusingly at the towering spread of canvas that half filled itself in the faint, hot air currents of the doldrums, only to go slack once more, as though every sail, from the vast courses to the small and distant royals, had sickened beneath the violent glare of the August sun.
High in the Djenn Marre foothills in the far northwest quadrant of the Borobodur forest.
That petty officers with records as martinets and incompetents are suddenly promoted to quadrant leaders?
Whenever this powdered and courteous old man, who never missed a Sunday at the convent chapel at Hammersmith, and who was in all respects, thoughts, conduct, and bearing utterly unlike the bearded savages of his nation, who curse perfidious Albion, and scowl at you from over their cigars, in the Quadrant arcades at the present day-- whenever the old Chevalier de Talonrouge spoke of Mistress Osborne, he would first finish his pinch of snuff, flick away the remaining particles of dust with a graceful wave of his hand, gather up his fingers again into a bunch, and, bringing them up to his mouth, blow them open with a kiss, exclaiming, Ah!